The control setup displayed in the below image is the default control setup for Vice City Stories. If this default configuration is not suited to you, you may change it in the start menu under "Controls". You can choose from three different types and when your game progress is saved, the configuration will save with it.
Combat System Controls:
(While Targeting Someone)
X - Heavy Hit
〉 - Block
Δ - Grab
O - Light Hit
(While holding an enemy from the front)
X - Heavy Move
Δ - Throw
O - Light hit
(While holding an enemy from the back)
X - Knee in the back
Δ - Neckbreak
O - Jab
(While targetting a prone enemy)
X - Stomp/ground kick
Δ - Pull up
O - Floor punches
(While targetiing a dead enemy)
O - Stomp/Ground kick