Its a fighting game "LITE" using two button controls.
One player mode
Basically it is the tutorial because I ran out of time :)
Tap X - Jab
Double tap X - One Two
Hold X - Move forwards
Tap Z - Dodge
Tap Z, then X - Dodge, then uppercut
Hold Z - Move backwards
Two player mode
P1 use z and x
P2 use , and .
When you're idle (or moving) your player is guarding and attacks will take down your guard meter, but not your HP. But when you are out of guard you become dazed and your HP can be damaged.
Dodging also builds up your special meter, which when full unleashes a strong attack.