The idea is really good, but i think you should start from the very start, just to make it longer, i mean.. dinosaurs, reptiles n' mammals... whatever, and keep going until actual times or further :P
Well, anyway, I'm asking too much but I dun care :P
NICE GAME, 3/5 'cos is short and left me wanting to continue ¬.¬
P.S.: "He's Dead, Good job ¬_¬" LUV DAT PART!