I can't add way too much compared to what everyone else said about the beginning of the game but somehow if you survive to go on it gets ridiculously easy and boring real fast.
The game would have been good if the knife part wasn't in it...or at least if it was better. I admit it was a nice change of pace...but maybe do it better so like maybe we can have some sort of input in it.
It's very very hard in the beginning and well...it got slightly easier with each upgrade I was able to buy. In the end though it all depends on whether the computer wants to bump into you knocking you from 1st to 6th.