You Should make the game speed faster, make blocks change colour when hit, and say what the powerups do.
A: longer "paddle"
B: slower ball? (not 100% sure)
C: Piercing Ball, goes through everything
I reccommend to finish this quickly you max out minigun (while putting up turret turn speed and movement speed), then just go straight to laser.
laser is especially useful in level 10 when you have to destroy many walls.
A tip if it hasn't been mentioned, level 34 (where u only control the fat guy, and u run away from the genie), you can simply take the item near the genie last. No need to run/roll.
I found a Duplication Glitch: You give a weapon to your team-mate, make him die(blow him/her up), then quit without saving(close browser).
You cant sell any items so this glitch isn't that useful, but somebody might want 2-man chainsaw team, or just 2 Spec-Op AK's like me.
D: sux mang...