It can be violent if ya want it to be..........
Defensive controls (not in possession):-- Sliding Tackle: Shoot / Tackle Button
-- Punch: Press the Pass button near an opponent player
-- Jump Kick: Press the Pass button while running towards an opponent player
-- Pull Shirt: Press the Pass button behind an opponent player
If it's not this game then you might wanna check the other fitba games MAME supports and maybe one the pics will jog your memory best of luck.
http://adb.arcadeitalia.net/lista_mame.php?category=74&arcade_only=0¤t_version=0