I dont see why everyone is complaining about checkpoints, etc.
This is meant to be an arcade game, like Geometry Wars, or the original Donkey Kong... And it does a great job of it too, with great physics, and a fun upgrading system.
5/5
beat it, too easy. balance all your stats except agility, focus into reinforcements, get enough ranks in init. gems so you can use reinforcements at the start, put about 3 or 4 ranks into gems gain rate. beat every single level, first try with this build.
Problem with many stealth games, the AI is usually pretty stupid, I hide behind a box when a guard is chasing me then he turns around and looks somewhere else. Love the random AI pathing, but I wanna kill guards too :D