Up to 17, this level makes me want to stop playing. The only problem with this game is that the teleporters aren't colourcoded. I tested each one and forgot where they all led anyway. Fix this one issue and its a great game.
This game is terrible. After I complete a game I should be happy and satisfied with the acomplishment, but with this game all I was thinking was "Finally, now I never have to ever play this game again". Theres some extremely annoying glitch that prevents you from using single use weapons (Slow Time, Death Duck, etc) for almost 4 seconds after you select them. Thats horribly annoying when you use it to try and escape a stiky situation only it doesnt activate before your already dead. In a lot of the later levels I found myself passing them from luck, 58 especially, I died after only getting 40 kills then with the same weapons passed it, only taking 3 hits at all. Level 58 is probably the worst level in the game by far. I feel very upset inside thinking about how much of a perfectly good day I wasted playing this game.
The only part which really annoys me is how sometimes a bridge breaks, then if you try again without changing anything they don't. Otherwise it's pretty good.