It is a Bleach arcade style fighting game. It has 9 characters from the anime and 6 stages you can battle it out on.

Instructions:
WASD - Movement
Block - F Key
Attack - G Key
Special - H Key
There is AI, under character selection for right side there is a tab which gives you the option to change.
The pause button is the space bar as mentioned in the Tutorial Mode, please check the tutorial mode before playing the game, that is why its there!