I liked the feeding pills to the monsters instead of killing them part. I think soundeffects would have been cool. And the ending was funny 

Hello. Your game idea is very creative and interesting ... but you have to choice better controls; WASD or arrows + space + mouse to shoot is very confused and difficult.  Is a good game with an excellent idea; and the graphics, no bad if you can to keep that style on the whole game.

the text to speech lady is funny, she is like a drunk glados