Got the game on whim last week and I kinda fell in love. I also got a 1CC on hard mode with Kamaitachi and I'm working on labbing the other characters.
It has some simple but really effective mechanics and the fact that is pure 2D puts even more emphasis on crowd control and positioning. The final boss in particular, is entirely based on this and it's a really well designed and unique fight. Juggle and combos option are also pretty solid, and the different characters are all diverse and fun to play.
The only issue I have with it is that it's a bit too easy, even on hard once you understand how the game works and how important throws are, even going for a 1CC is not that challenging especially if compared to other games in the genre. One of the reason for this is almost all of the enemies outside of some bosses, don't have any kind of wakeup attack, or any other "get off me" move.
That said is still really well designed and a ton of fun to play, seriously a little hidden gem.
@zaa / Aaro : Do you know of any high level player that plays Kamaitachi? It's my favourite character and I'm curious on people play him and to learn more about him