As much as I'm enjoying this game, the (IRL) memory leak is really annoying. Every hour or so I have to refresh the page because it is using 2+ GB of RAM.
@filipe92 Check your browser's zoom level. I occasionally have the same problem, and zooming out (Ctrl + scroll wheel) will zoom the page and should re-size the game to fit.
Is it bad that when I saw "World Domination" I instantly built an extra wing containing 100 researchers? Sure making tones of money is good, but world domination? Way cooler.
I both love and hate this game. I love it because it's addictive (was one of my favorite games on the TI series calculators), but hate it because it cost me a Trigonometry class. Way more interesting than a lecture. Quick, hide it before my boss sees. >.>
Upgrades and power-ups? Nice touch. I like the pace, and the retro feel (Galaga anyone?), with an updated feel (flanking happens, get over it). As has been said, your English seems to be a bit...off, but good gameplay is more important. Good game.
I'm going to have to rate this two stars. Collision detection is a bit screwed. Shooting just under or just above an enemy will get them the same as if you actually hit them. I've seen several of the flying eyeballs pass through walls wile they were nothing, and I managed to get utterly stuck on level 2. Took the long way instead of the nearest door, and can't get out. Can't hop over the wall with the guy glued to it, and can't get back up the shaft I came down to get into the area.