JASON Secret
In Pterattack, start a game and press and hold J A S O N. You get a new character and weapon (Boogie Sweeper). It shoots a big blast! If you want to see what it looks like, here is a screenshot thanks to the_frozen_fly! – mewtoo13
If you cannot get this to work
Just a note, if anyone runs into trouble with working this secret, I figured out this morning its all the matter of THE KEYBOARD. I switched my keyboard to my ergonomic keyboard that I used on my other computer (cause it would let me on that) and now it is letting me on this computer! – ladysobe