Okay, the site seems to load a bit better now. Dunno what's up but it would only load a very small piece of the pages before...
I'll take care of all the bugs, and some major changes will happen to the game as I continue to develop it, but the current release will be the compo version.
Known bugs:
-Don't try to view the credits or the menu will stop working (press esc to get back to a working menu)
-The music is bound to be buggy. I hate OGG files :/
Clarifications:
-Level 3 has a time limit, dunno if it works or not.

-Press space to skip cutscenes.
-Free play lets you play any level with any character.
-Story mode can only be played with the chopper (currently, will change in future versions).
-Difficulty changes how many bosses and enemies you will face per level.
-Some bosses have small tricks you need to figure out to beat. Try to analyze their behaviour and think of a strategy to beat them.
Controls:
Chopper
Z - Shot
X - Missile
C - Rage (once per life)
Skull dude
Z - Aim
X - Aim / Rage (once per life, and only in mode 3)
C - Switch Mode
V - Shoot
Chick
Z - Throw aiming thing
X - Retract aiming thing
C - Shoot laser
V - Rage (once per life)
Sorry about the lack of polish :/