This is pretty solid man. I like the premise, and it has a good challenge. Only real issue was an invisible enemy on the second level, but I enjoyed it overall. You could definitely expand on this idea.

Gameplay doesn't have much to offer, but I still enjoyed it.

interesting gameplay mechanics, graphic looked a little out of place and black background looked a little odd, otherwise bunch of fun thx!

I wasn't able to run it

Liked this one. There is only one thing that you can fix. The player aims on the "bottom" of the cursor. You should set in the '0x0' of the cursor

Wow, that is pretty hard, the AI is really quite good! I like the way that you can't move through some areas unless you become the enemy, which stops you from just gunning it through the level. If this is your first LD, then congratulations, you finished and handed in a good solid submission to make a full version.

Liked:
- Good balancing and difficulty curve
- Solid controls, nothing felt unfair
- Cool boss battle at the end. Gave the game an entire "arc" and a complete feeling that many LD games do not have

Disliked:
- Gameplay was pretty simple/standard.
- The "parasite/virus" aspect of the game felt unnecessary. I never used the transfer mechanic to my advantage. It was just something that happened, without adding to the gameplay. Check out this game http://ludumdare.com/compo/ludum-dare-32/?action=preview&uid=50284 (Ninja Swapper), which uses a similar mechanic and builds the gameplay around it.

Overall a solid start. Getting balancing/difficulty/bossbattle right is a HUGE plus as many LD games lack that polish, but this game needs something to differentiate it from the crowd of similar games.