In case you're not using an actual Xbox360 pad (which the game thankfully support - a rare thing these days), but something similar, this is how they mapped the buttons:

A - Jump / Dodge
B - Interact
X - Punch
Y - Kick
LB/L1 - Target
LT/L2 - Special moves
RB/R1 - Spam Attack
RT/R2 - Junk Attack

Right stick- Camera
Left Stick- Movement

Start- Pause menu
Back- Sensen Menu