I'm in total awe here, this was incredible!
Loved the game, the hard mode and "way too easy" hat gave the game enough challenge even for a pro and the dialogs were hilarious.
Only issue is the controls, if you play with arrows, space bar seems like a poor choice of fire button... I think Z should fire and X activate super max, the keys are right beside eachother and it gives you better control of your character.
Anyway, good job!