I've played a lot of games here on kongregate. And I've rated a lot of games 5 stars, but this one was really fun! I enjoy a challenge, but this game kept having me come back for more. I don't know if it's because the levels are so quick, or the upbeat music, but it really makes me happy. Especially when there is a level with all different kinds of bombs chaining all over the screen. Thanks so much!
I really liked this game. Very fun and educational. I wish there was more of these. My only suggestion/complaint is that I would like it to actually tell you that you need lysosomes to defend against the invader virus.
 "Culmination"){kind=icon}
 "Icy Gifts 2"){kind=icon}
 "CellCraft"){kind=icon}