I keep crashing into the top... Level 3 is my best so far...

I really like the background graphics you have going there... Especially the square red blood cells...

Wow, this game is hard. I love the visual style, it works really well. Well done!

This looks so cool. Its a little hard to get used to the controls though.

I like that it's totally different theme-wise from what I have seen so far, and still fits.
Also woah.. hard to play with touchpad, still made it to lvl3 .. is that one beatable?:)

It's really hard!

Yeah really hard! I like the mood :)

Good game.
But way too hard...

Incredibly innovative take on the theme!

For those who couldn't make it; level three is indeed impossible :P

I don't know if you were aware but you can still shot after death. So, I shot the level 3 enemy (is it a virus? :3) after death and it's healthbar went negative :P Screenshot below.

http://i.gyazo.com/3babbf11d12eac79afdebd0f0f86746e.png

Either way, more levels, and less of a difficulty ramp would have made this a touch better, but you still get the thumbs up from me.

I like the graphics! Very nice.

Nice idea and I really liked the color combination. It's a bit to hard to control, maybe it would've been easier to shoot with the mouse button. Also I was able to win after I was dead, I just kept shooting .

The controls were too hard, but the game was fun!

you can keep shooting after you die... got to level 3 but the health bar goes negative :-)

hard game - love it :D

I didn't really like that the bullets went faster the farther away my mouse cursor was. Felt unnecessary. I wish they would just go max speed all the time. Also, holding down left-click would've been much better than holding space to shoot.

Some music would've been nice, even just something ambient and moody. Sound effects were ok.

Graphics are probably where this game performed best, the red-blood cells were a nice touch.

The controls are simply out of this world. It was extremely difficult to control the white blood cell and sometimes it felt like they were purely random forces knocking it around. The playable area felt just a little too confining, but I guess that adds to the difficulty and is probably intentional.

Overall, interesting concept, cool take on the theme. I was hoping to see a few "under the skin" or inside the human body games, but this is the first I've encountered so far.

Nice game with cool graphics, hard but enjoyable.

One HUGE problem for me: The controls are nearly impossible on a laptop. I keep reflexively clicking instead of pressing space bar.

Super difficult! Also possible to keep shooting after you die.

I enjoyed the visuals, but found the controls awkward. It felt like I was missing something about how the movement worked and kept clicking to shoot rather than use space.

This was a pretty fun game to play! Was hard to control but I'm guessing that was by design :)

Awesome graphics, it could use with some gameplay tweaks, Fritzendugan's above comment pretty much nailed it on the head. Overall a good submission!

The game is nice as far as graphics and sound goes but the I feel like the controls make it really frustating.

Very steep learning curb.
But nice concept.

The gameplay is nice, but the movement makes it very hard.

The controls made this game harder than it needed to be. Overall - it's a good use of the theme.

Great game, but there's one problem, when I die, I can still shoot

Looks great. I found the easing on the controls way too frustrating, couldn't stop sliding into the walls.

Challenging but fun game! I included it in part 25 of my Ludum Dare compilation video series, if you'd like to check it out :) http://youtu.be/06U_lc3kLp4