Incredibly difficult game that throws rock-hard walls of challenges at you. If you think the tutorial mission was hard than you'll have a brain aneurysm in just a few levels after that.
The combat feels pretty good once you get used to it, kind of a shame that you can't go "all out" on enemys because levels are covered with all sorts of spikes and traps, so you can't really concentrate on the combos because you have to worry about other things.
This game is also a platformer, and sadly it's controls are not as smooth as, say, Super Meatboy and the game likes to pull out bs, like hiding traps just out of your field of view. Now some might say "look before you leap" and, in this game, that is indeed what you have to do; but their's a reason Super Meatboy gives you such a large viewing area, so you don't have to break game flow by having to stop and check EVERY pitfall & hole before you drop down it. So playing a level becomes a tedious exercise in trial and error after a while.
If I have one major complaint: it's the lack of "built-in" checkpoints in the level. The ability to fill up a meter to create our own checkpoints is a nice idea, but if the point spawns in a bad place, then you might as well start the level over. I'd love it if their was an option to respawn at a player made checkpoint or one in the level that may be farther back, but at least I'd know it was safe.
But, despite my gripes, I still like the game. It's artstyle is charming and the gameplay takes some getting used to, but I'm willing to push through that barrier and really get into what the game has to offer.
TL;DR: The games "flowing" combo fighting doesn't really mesh well with it's clastrophobic & spike filled level design and this isn't helped by having a limited view of the level & having to stop and swing the camera around to search for hazards before continuing onward. But if you can get past that, the games has it's charms. 8.5/10