Thing Thing Arena is an action-packed shooting game that thrusts players into a relentless battle for survival against waves of relentless enemies. Set in a series of bleak, industrial environments, players control a custom-designed character equipped with an array of firearms. The objective is simple yet challenging: survive as long as possible while enemies pour in from all sides. The gameplay emphasizes quick reflexes and precise shooting, with a variety of weapons available, from pistols and automatic rifles to more exotic choices like laser guns. Each enemy defeated drops useful items, including health packs and ammo, crucial for sustaining the fight.