This game was a lot of fun. I feel like I was able to get pretty far with practice. But no matter how much I played it felt strange using the space key to jump. Left mouse click would have felt more natural in my opinion (point and click feels more natural than point and spacebar).
Still, really great concept. I like the fact that as stronger enemies come that also gives you stronger enemies to possess. The game gets really fun once you take over the enemies with rapid fire weapons and whatever those helicopter looking things are.