Hey, I remember playing this game at CivFanatics one time. If I recall, it only reached about 150 before it died, so maybe we can do better!
Giga, the idea of the game is to find pictures related to each number, instead of just typing them out. If you don't have any ideas, you could do a Google image search or look up Wikipedia and find a picture that way. I'll carry on and do 2, if you find something for 1 you can edit it into your post
And I know this isn't greatly original, but hey, there aren't that many Lemmings games so I may as well go with this: