Amazing game, but i found few bugs.
Firstly the most game breaking one. If you get too many perks with lvlups or boxes only option left will be white no-text perk, this one cant be picked and stucks you in picking screen.
Secondly some moves don't work or work incorectly when used under unusual circumstances. e.g. when using hadoken while jumping regular gun is used instead.
And for last one I noticed, sometimes bosses wont die when kicked out of the window, thus making progression impossible.