*Music Credits have updated in the Extras Menu. *Tumblr link has been replaced by the Newgrounds link in the Extras Menu (due to the Tumblr page being discontinued)

*Silica Islands is now easier (when you jump on any patch of water, you'll get a short boost up, but it will only work on that patch of water once)

*New stages have been added in 2 Player Mode, Scoria Caverns, Carnelian Mountain, and Mount Dolomoth have been added to Battle Mode. Linden Forest, Phalaris Field, and Basalt Prison have been added to Race Mode.

*After you beat Mighty Boy, Mighty Girl, and Ninja Boy's stories and select View Load Codes in the 1 Player menu, you won't have to pick a character and it will just give you the code (to make things less complicating for everyone)

*Problem has been fixed for when you erase your data, it will now erase the progress for the final story.

*After you beat the final story, the title screen will change.

*After you beat the final story, you will unlock the new Hard Mode in 1 Player.

*After you beat the hard mode, you'll unlock a code that you can use in Mighty Boy Flash 2.

*If you use that code in Mighty Boy Flash 1, your progress on the Hard Mode will be saved and when you select Mighty Boy in Level Select in 1 Player, you can choose the difficulty, when choosing Hard, you can replay any of the Hard Mode stages, including the brand new level, The Moon.