You can play previous versions of the game in the Old Versions section.
Version 3.1.21 - December 27, 2013
- Added classic special option - allows you to disable pressing up + attack for Ryu and Simon, and down + attack for SOPHIA to use their special move.
- Fixed bug that caused game to freeze when getting Exploding Rabbit power-up in classic mode.
- Mega Man will no longer lose charge if you were charging when you got a mushroom
- Fixed bug that caused Mega Man to disappear while charging on the title screen
- Fixed some problems with Lance's music
- Made special skins compatible with music console system, and changed some of their defaults to Nintendo
- Fixed bug that showed Luigi's skins in the wrong position
Version 3.1.2 - December 25, 2013
- Added classic power-up mode
- Based on version 1.0 mushroom / fire flower system
- Includes ability to customize weapons (many characters have extra weapons set to the special and select buttons)
- Special note for Mega Man - hold the select button to swap weapon buttons - also works for Bass and Bill, but you don't have to hold it for them
- Added "Previous State" to the “When Hit” setting (located in New Game -> More Settings) in classic mode. It lets you keep your mushroom if you’re damaged while you have fire flower.
- Previous power-up mode is still available by setting "Power-up Mode" to "Modern"
- Added character disabling - Located in Options -> General -> Disable Characters
- Added character/map skin disabling - Located in Options -> Skins -> Hide/Show Skins
- Added presets for disabling groups of skins
- Added random skin select when choosing a character or skin (press the special button)
- Added a Mario skin: Modern Mario
- Added a Luigi skin: Modern Luigi
- Added a note to all Bill skins stating he doesn't collect Mushrooms
- Lakitu's respawn time adjusted to match original, and the time now varies depending on map difficulty
- Flying Koopas now give the correct score when stomped (400)
- Rearranged some of the Bill skin music sets to account for the Super C skins now existing
- Removed an extra Hudson Bee item from Lost Levels 5-1 Hard
- Lost Levels 9-3 now plays "Castle" music instead of "Normal" music
- Pipe to warp zone in Lost Levels B-4 can now be accessed on Easy difficulty
- Bowser fight in Lost Levels D-4 now plays "Final Boss" music
- Various graphical and level adjustments
- Various bug fixes
Version 3.1.01 - December 17, 2013
- Fixed an issue where some nighttime levels on the Lost Levels map skin were appearing as daytime levels
- Adjusted a pit in Lost Levels 8-1 that Bass couldn't cross
- Adjusted a section of LL 5-2 Hard where Sophia couldn't gain access to a warp zone
- Added the Hudson Bee item to Lost Levels Hard maps that didn't have one
- Adjusted Samus' Wave Beam damage
- Changed the "Dark Epic" music for the Hayate and Kaede skins to a song that loops
- Changed the "Choose Character" music for Hayate and Kaede
- Other various graphical and level adjustments
Version 3.1 - December 16, 2013
- Added easy, normal, and hard versions of the Lost Levels maps (mostly based on SMBDX)
- Added various Lost Levels elements: Fake Bowser enemy, chasing Hammer Bros., mid-screen height Lakitus, green springs
- Added skin sets: Lost Levels, All Night Nippon
- Added a skin for Bass: Skull Man
- Added skins for Bill: Super C Bill, Super C Lance, Sharp X1 Lance, Atari Lance
- Added skins for Link: Old Man (16B, GB), Cecil (both Dark Knight and Paladin), Bartz
- Added a skin for Luigi: SMB Luigi (8B)
- Added skins for Mega Man: Cut Man (16B), Roll (16B), Quint, Fire Man, Francesca, Doropie
- Added skins for Ryu: Ryu Clone, Hayate, Kaede
- Added skins for Samus: Dark Pit, Dark Samus (8B, GB)
- Added a skin for Simon: Soleiyu Belmont (GB)
- Added Magma Bazooka weapon for Mega Man and Bass
- Some changes to the Lost Levels maps were made to accommodate the other characters
- Some skins behave differently than character: Zelda (8B, 16B, GB), Fire Man (8B), Francesca (8B), Doropie (8B)
- SMBS map skin and Sharp X1 character skins now use GB music
- SMB and SMBS map skins now use SMBDX Poison Mushroom graphic
- Red Paratroopas now behave like Green Koopas after losing their wings
- Buzzy Beetle health increased to line it up with Koopa health and to allow more weapons to cause it to enter its shell
- Simon now jumps slightly higher to allow him to consistently jump 3-tile high objects without having to double jump
- Enemies and Mushrooms no longer bounce on springs
- In Lakitu levels, the max number of Spinies now differs depending on the difficulty
- Timer on SMB 2-1 changed to 400 (from 300)
- Podoboos now animate correctly
- Music from Blaster Master: Enemy Below is now the correct speed
- Surface of water in water levels on SMB2 SNES map skin now appears correctly
- Hammer now works correctly when "Attack Strength" is set to "Strong"
- Bouncy pits cheat no longer interferes with entering pipes or with Red Paratroopas
- Piranha Plant settings now save correctly
- Breaking 1,000 bricks and finishing the game should now always unlock the associated cheat
- Samus no longer retains the Varia suit colors after dying while "Keep All Upgrades" is active
- Link no longer reverts to Boomerang upon entering a new area
- ER power-up now gives Simon the Triple Shot
- Mega Man's charge SFX no longer plays when game is paused
- Simon and Ryu no longer bounce continuously when they get hit and land on a spring
- All Bass skins now play music when the console is set to GB
- Bullet Bills no longer interact with Koopa shells
- Various character portrait color issues have been fixed
- Fixed various object and enemy placement errors in some levels
- Other various bug fixes, graphical changes, and adjustments
Version 3.02 - August 2, 2013
- Added proper Screw Crusher sound effect
- Fixed a bug where the game would crash in certain areas when using the Atari map skin
- SMBS 4-3 is now treated as a coin heaven room on all skins, instead of a normal bonus room
- Changed Invisible skin name to "SMB (Invisible)"
- Fixed other graphical and map layout issues
Version 3.01 - August 1, 2013
- Updated Exploding Rabbit logo
- Fixed bug with attack strength not being loaded from a save file
- Fixed bug with Pharaoh Shot not working when damage response was set to keep weapons
- Fixed bug with looping sounds still playing when game was paused
- Made bricks breaking on title screen no longer go toward unlocking cheats
- Updated Link's atari portrait
Version 3.0 - July 31, 2013
- Added Super Mario Bros. Special (SMBS) levels
- Added Easy and Hard versions of all levels
- Added enemies and power-ups from SMBS
- Barrel, Fighter Fly, Firebug, Icicle, Sidestepper
- Clock, Hammer, Hudson Bee, Lucky Star, Wing
- Added Poison Mushrooms
- Added full screen mode
- Added skin sets: SMB2 NES, SMB2 SNES, Castlevania, SMB Special, SMB Atari
- Added skins for Bass: Bass (Sharp X1), Bass (Atari), Dr. Cossack (8B), Dr. Cossack (16B), Gemini Man (8B), Gemini Man (16B)
- Added skins for Bill: Bill (Sharp X1), Bill (Atari), RD-008 (GB), RC-011 (GB)
- Added skins for Link: Link (Sharp X1), Link (Atari), Zelda (16B), Zelda (GB), Ralph (GB), Christine (8B), Erdrick (8B), Roto (16B), Loto (GB), Benjamin (16B)
- Added skins for Luigi: Luigi (Sharp X1), Luigi (Atari), Space Luigi (GB), Toadstool (16B)
- Added skins for Mario: Mario (Sharp X1), Mario (Atari), Space Mario (GB), Toad (16-B)
- Added skins for Mega Man: Mega Man (Sharp X1), Mega Man (Atari), Mega Man (no helmet) (GB), Rock (8B), Rock (16B), Break Man (GB), Dr. Light (8B), Cut Man (8B), Ice Man (8B)
- Added skins for Ryu: Ryu (Sharp X1), Ryu (Atari), Ryu (Sega Master System)
- Added skins for Samus: Samus (Sharp X1), Samus (Atari), Samus (no suit) (16B), Samus (alternate no suit) (16B)
- Added skins for Simon: Simon (Sharp X1), Simon (Atari), Trevor? (8B), Trevor? (16B), Richter (8B), Richter (16B), Sonia (GB), Alex (8B), Kunio (16B)
- Added skins for SOPHIA: SOPHIA (Sharp X1), SOPHIA (Atari), SOPHIA (alternate) (16B), Tetrimino (16B)
- Some skins behave differently than character: Quick Man (8B,16B), Rock (8B,16B), Proto/Break Man (8B,16B,GB), Cut Man (8B), Ice Man (8B), Haggle Man (8B,16B), Pit (8B)
- Difficulty settings are now more customizable
- Added menu for selecting skins
- Added skin description bar to skin selection menu
- Added several new cheats and a new method for unlocking all cheats
- Added news and info ticker to title screen
- Two keys changed due to various browser behaviors: Tab (Select) has been changed to A, and Escape (Start) has been changed to Enter
- Added coin sound options to menu: Normal, Quiet, Off
- Coin blocks and bricks now sometimes drop ammo for most characters
- Helper platforms are no longer moving platforms and instead seamlessly blend in with levels
- Added a seventh digit to score
- Added a new weapon for Bass: Screw Crusher
- Removed Metal Blade from Bass
- Link and Ryu now have a sound effect for attacking an armored enemy
- Ryu now deals a bit more damage, can jump a little bit higher, and the Windmill Shuriken can pierce armor
- SOPHIA's shots now have different sound effects for the three different levels
- Ammo now resets after death, and characters now start with more ammo
- Kills on title screen no longer count toward cheat unlock totals
- Koopas can now be killed by a strong attack, rather than always go into their shell
- Fixed item icons when changing skins for some characters
- Reinstated power-up for Samus: Missile expansion pack (increases maximum Missile capacity)
- Reinstated power-ups for Link: Bomb Bag (increases maximum Bomb capacity), Quiver (increases maximum Arrow capacity)
- Certain pits underwater now pull in Mario and Luigi
- Fixed Bass' jumping above the water line in underwater levels
- Piranha Plants don't come out of pipe regardless of your vertical position
- Fixed several SOPHIA bugs
- SOPHIA's homing missiles no longer recognize armored enemies
- Mega Man and Bass now keep some weapons when hit
- Several enemies now behave more accurately when hit from below and when falling off of ledges
- Vines now animate
- Removed forest foreground on Super Mario World skin
- Shells can now hit blocks and bricks from the side
- Modified damage and health values to make game more balanced
- Overhauled enemy sheet from Demon Returns skin
- Updated Mario and Luigi's portrait
- Updated various skins' portraits
- Updated tutorials that were out of date
- Updated credits
- Several modifications, updates, and fixes to existing skins
- Many other changes and bug fixes
Version 2.1.1 - January 6, 2013
- Map skin can be changed on character select screen by pressing the special button
- Credits can now be fast forwarded by pressing pause button
- Changed green piranha plants to red in very hard mode.
- Made some changes to music
- Made SOPHIA's correct music play when using "character" music set
- Updated tutorials that were out of date
- Updated credits
- Fixed bug when Ryu and Simon got hit with bouncy pits cheat enabled
- Fixed bug that caused text on loading screen to be hard to read when using Super Mario Land 2 skin
- Fixed bug with Super Arm
- Fixed bug with Bill's machine gun
- Fixed bug that sometimes caused Bowser to revert to his original form after dying
- Fixed bug that sometimes caused charge kick to display on wrong side
- Added flames to Super Mario World castle backgrounds
- Modified Quick Man's shooting sprites
- Changed the toad and princess sprites for SNES Super Mario Bros. 3 Mario and Luigi
- Added pully graphics for the Super Mario World and Blaster Master map skins
- Modified pully graphics for the NES and SNES Super Mario Bros. 3 map skins
- Fixed some sprites and portraits that weren't changing colors properly
- Fixed a background glitch in world 4 in the NES Super Mario Bros. map skin
- Fixed the missing toad and princess sprites for SNES Ryu
- Fixed the forest foreground that was hiding a block in 5-2 on the SMW map skin
- Fixed bug with pharaoh shot
- Quick Man can slide when using Charge Kick
- Added helper platforms for Quick Man to levels he could not complete
- Various minor bug fixes
Version 2.1 - December 21, 2012
- Made several changes to upgrade system to make game more balanced and fun
- Increased music emulation speed by about 4.5 times
- Added skin sets: Zelda 2, Blaster Master, Super Mario Bros. 3 SNES, Super Mario World
- Added skins for Bass: Mr. X 8-bit, Mr. X 16-bit, Quick Man 8-bit, Quick Man 16-bit
- Added skins for Bill: 16-bit Lance, 16-bit Bill, RC-011
- Added skins for Link: Old Man, Zelda, Hero, Heroine
- Added skins for Luigi: SMB2 16-bit, SMB3 16-bit, Super Mario World, Princess Peach
- Added skins for Mario: SMB2 8-bit, SMB2 16-bit, SMB3 16-bit, Super Mario World, Toad
- Added skins for Mega Man: Break Man 8-bit, Break Man 16-bit, Roll, Rokko Chan
- Added skins for Ryu: Haggle Man 16-bit, Shadow
- Added skins for Samus: Zero Suit, Pit
- Added skins for Simon: Super Castlevania 4, Whip Skeleton
- Added skins for Sophia: Sophia J7 Gameboy, Tetrimono
- Some skins now behave differently than character, including Quick Man, Proto Man, and Pit
- Added custom sound effects and flashing for Simon's Castlevania 2 skin
- Peach and toad now change according to what character you are
- Modified damage and health values to make game more balanced
- Fixed bug that caused some graphics to disappear
- Made Mega Man's charge flash animation more accurate
- Made Luigi's physics more accurate
- Made most characters walk at normal speed under water
- Simon's axes now go through enemies instead of stopping
- Made modifications to make Bowser less difficult for some characters
- Bullet Bills now animate properly
- Made Bowser's axe animated
- Rearranged order that skins show up in game
- Added extra Super Mario World animations to Mario and Luigi
- Bullet Bills now snap to tiles
- Added up+Attack for special moves to Simon and Ryu
- Added down+attack special moves for Sophia III
- Bowser's hammers are now skinnable
- Fixed bug that stopped ammo icons from updating on skin changes
- Many other changes and bug fixes
Version 2.031 – March 1, 2012
- Fixed some minor bugs
Version 2.03 – February 13, 2012
- Added invisible skin set
- Fixed a bunch of bugs
Version 2.02 – February 9, 2012
- Combined Samus's Morph Ball and Bombs into one upgrade
- Combined Link's Magic Sword and Red Ring into one upgrade
- Removed Link's Quiver and Bomb Bag upgrades
- Removed Samus's Missile Expansion Upgrade
- Added option to change character skin when the game is paused
- Fixed numerous bugs
Version 2.0 – February 8, 2012
- Added graphics skinning system to the game
- Added new power up system with multiple power ups per character
- Added Bass as a playable character
- Added Luigi as a playable character
- Added theme system that allows different graphical themes and colors to be applied to each level
- Added multiple skins for each character, including at least one alternate persona
- Added support for LZMA compression. This decreases the file size.
- Modified some characters to make them control more like their original games
- Added music support for multiple video game music formats
- Added new music for each skin
- Added ability to simulate consoles by limiting skin and music choices
- Fixed bug that caused simon to die when beating bowser with the classic Simon cheat enabled
- Sound effects are now emulated and recorded in game
- Redid title screen
- Redid character select screen
- Removed Mega Man high jump cheat and made Mega Man always jump high. Changed Rush Coil into a regular weapon.
- Removed ability for all characters besides Mario and Luigi to stomp enemies
- Modified health and damage values for some characters and enemies
- Added status property system which allows enemies to be frozen and have other effects
- Added Game Boy filter, which makes the game look like it's being played on a game boy
- Link now flips when he jumps and has a jumping sound effect
- Logo and disclaimer will not show up when restarting the game
- Fixed multiple bugs
Version 1.2.03 – December 16, 2010
- Changed sprites for Spike Tops. They now match the style of the other enemies. The new sprites were made by Ryuza.
- Slightly adjusted SOPHIA’s climbing controls to make them more intuitive.
- You can now revive characters before starting the last level in survival mode.
- Fixed bug in cheats menu that took you to wrong menu when exiting.
- Fixed bug with vine in coin heaven.
- Fixed bug that would sometimes freeze game after beating a level with underwater cheat activated.
- Changed default pause button to escape. You can now use enter to choose items in the menus again.
- Fixed bug that wouldn’t load saved button configuration.
- Changed order of items in Game Mode Menu.
- Fixed bug that sometimes caused player to fall in pit after getting axe. The last fix didn’t do it.
- Raised height of bouncy pit activation slightly. Enemies should no longer get stuck with bouncy pit cheat activated.
- Fixed bug that let SOPHIA fly under the level.
Version 1.2.01 – December 15, 2010
- Changed SOPHIA’s ceiling grappling controls. SOPHIA will now always grapple to the ceiling unless you hold the down button.
- Fixed bug that sometimes made game unplayable when starting a new game.
- Fixed bug that sometimes caused player to fall in pit after getting axe on Bowser levels.
- Fixed bug that sometimes caused buttons to remain pressed when exiting a pipe.
- Game now only accepts save files from version 1.2.
Version 1.2 – December 15, 2010
- Added Survival game mode.
- Added SOPHIA III as a playable character.
- Cheats can now be unlocked by meeting certain conditions.
- Changed “Simon jump,” “Samus Crouch,” and “screen scrolls left” options into classic cheats.
- Added Mega Man High Jump Cheat.
- Added a bunch of cheats which I’ll list later (so they’re not spoiled).
- Enemies can now drop items when they die.
- Added missiles for Samus.
- Changed Ryu’s music back to how it was in the original version 1.1.
- Added Music Set option.
- Added Cheat Notify option.
- Fixed collision detection bug with platforms.
- Added “View Manual” to main menu.
- Changed music for Character Select Screen.
- Changed Mario’s credits music.
- Changed default pause button to Enter key.
- Fixed some bugs with Hammer Bros.
- Level Select cheat can now only be accessed from the pause menu.
- Tutorials can now easily be turned off before starting a new game.
- Character select screen now scrolls (for fitting more characters).
- Changed title graphic.
- A lot of other things I don’t remember.
Version 1.1.03 – September 22, 2010
- Fixed bug that caused game to be unplayable in newest version of Flash (10.1.85.3).
Version 1.1.02 – June 29, 2010
- Changed Simon’s jump option to three different types: easy, hard, and classic.
- Changed Ryu’s music.
- Mega Man can slide continuously.
- Mega Man can slide over small gaps.
- Mario can run over small gaps.
- Fixed a bug that made Lakitu reappear if he went offscreen.
- Fixed a bug that made you bounce if other objects bounced on a nearby spring.
- Mushrooms can now be bounced in opposite direction depending on their position.
- Fixed bug that stopped mushrooms from bouncing when you hit the block they are on.
- Fixed bug that sometimes messed up screen scroll after getting axe on Bowser levels.
- Falling platforms now fall when Ryu climbs on them.
- Time now stops when you get the axe on Bowser levels.
- Time now stops when player dies.
- Ryu can no longer stomp enemies while climbing.
- Ryu jumps lower while under water.
Version 1.1.01 – June 25, 2010
- Fixed bug that killed you instantly on 8-4 if you didn’t move after coming out of the final pipe.
- Fixed load game bug (old save files will not be compatible).
- Changed default controls.
Version 1.1 – June 25, 2010
- Added Ryu Hayabusa as a playable character.
- Music is now emuated through an NSF player using Game Music Emu.
- Optimized game engine to make it run faster (but it will run slower than before due to NSF player).
- Options menu added.
- Samus can now crouch. Functionality can be turned on or off in options menu.
- Simon can now change direction in midair. This can be enabled or disabled in the options menu.
- Link can now attack in all four directions.
- Mega Man can summon Rush Coil and his jump height has been decreased.
- Added difficulty settings to the game: super easy, easy, normal, hard, and extreme
- Added a new enemy, Spike Top, to Extreme mode. Spike Top sprites drawn by J Squared.
- Added the ability to play the whole game as a single character.
- Added cheats: level select, water mode, invincible, and infinite lives
- Added option to turn off timer.
- Added option to mute sfx and music.
- Added option to disable left screen scrolling.
- Added menu option for quitting the game.
- Added “load game” to pause menu.
- Added disclaimer to title screen.
- Added more music and changed some old music.
- Added in better Samus and Simon climbing sprites drawn by Jay Squared and Berserk X 33
- Decreased file size through different compression techniques.
- Fixed bug about Lakitu and Bowser getting stunned.
- Fixed bug that sometimes caused ground to disappear after continuing.
- Fixed bug that stopped Mega Man’s charge shot and Simon’s axes even when they killed Koopas.
- Fixed flashing speed of coins and item blocks to match Super Mario Bros.
- Added random selection to character select.
- Fixed Link’s boomerang throw point while in air.
- Changed undestructable bricks into coin blocks.
- Fixed coin symbol blinking bug on intro levels.
- Made projectiles disappear when you touch the flag pole.
- Bowser in 8-4 now throws hammers and shoots fireballs.
- Firebar collision detection has been changed to match Super Mario Bros. and make them less annoying.
- Fixed bug causing Mario to not be able to move while swimming and being pulled into pit.
- Mega Man can now cancel slide and can sort of tiptoe.
- Made piranha plants come out of pipes faster.
- Changed Samus’s power up order.
- Fixed Mega Man standing sprite.
- Fixed bug that messed up game if you touched flag with star power.
- Made score remain on game over screen.
- Fixed Mega Man disappearing bug in clouds.
- Fixed Mega Man sliding bug that sometimes caused him to get stuck.
- Fixed Samus bomb jumping bug that caused her to get stuck in walls.
- Pressing pause during character select now mutes and unmutes music.
- Added bullet reflecting sounds/animations to Mega Man and Samus.
- Changed fall speed of mushrooms so that they will hopefully follow the same paths as in Super Mario Bros.
- Made the game more awesome.
- Did a bunch of other stuff that I can’t remember because I don’t write stuff down as I do it.
Version 1.0.02 – April 29, 2010
- Attempted to fix disappearing ground bug, but failed.
- Made Samus’s bombs blow up faster to more closely match Metroid.
- Completely removed “report a bug” and “submit” feedback features.
- Made a few other minor adjustments I can’t remember.
Version 1.0.01 – April 27, 2010
- Disabled “Report a bug” and “Submit feedback” features because they weren’t working on Newgrounds.
Version 1.0 – April 27, 2010
- First Release

Super Mario Bros. Crossover Change Log
A list of changes made in Super Mario Bros. Crossover
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