You should consider submitting this for the stencyl jam contest if that is still going on. (I dont know if it is)
2 things: I had an error in the tutorial where my guy would die on starting for no reason.
Also, you might want to consider putting basic controls up in the black space during the main game just for a refresher in case someone wants to skip the tutorial anyways. just like (arrow keys to move, s to shoot) and just leave it there for the first 10 seconds or so.