It'd be nice if you added something to the game, rather than just remaking Asteroids pretty much verbatim. Also, use something from the Adobe Flash CS series, not an online game-maker because game-makers generally limit the qualit o the games you make to substandard levels.
You can't die....
The green orbs don't do anything...
enemies disappear randomly off the screen when you hit the population cap...
It would have been a good first level to a game if it was better.
3D? No. You can't walk within the hit box of the giant not-displayed animation rather than the depicted buildings so the game has more terrible, terrible 2D graphics than 3D.
upgrades are horribly broken. They dissapear on the level after you buy them and further upgrading any stat you upgrade on a later lavel has no effect. They spread upgrade doesn't even work past level 2 no matter what.
I think it's funny how you don't actually need to unlock the door to get to the computer. You can just double jump from below and get inside if you have lv.5 jump.