Nevermind, I found the fix from Hosasy:
1.win+r, type in "regedit", click OK or press enter
(now you have registry editor opened! that's where unity games store their playerprefs!)
2.next you want to go edit>find, then type in "twobraincells" (without the quotation marks)
3.click "find next", wait, it might take some time
4.you should be taken to the folder named accordingly ("twobraincells")
5.next, you want to delete the subfolder "ribbons", or the whole "twobraincells" folder (be cautions, this is the registry editor, and click your clicks carefully). as long as you don't delete anything else, your pc should be fine.6.return to the game, buttons should be back to working!
Note: That a beautiful game, worth the effort to fix it!!