Robo Pit is an arena fighter where you create and customize your mechanical gladiator. You choose the color, body, eyes, and legs, with some options affecting gameplay. The legs you select change your robot's speed, mobility, and special attack.
As you progress through the ranks, you face off against increasingly tough opponents, each with their own unique arms and abilities. You can collect new arms, such as swords or cannons, which improve your robot's effectiveness. Additionally, powerful "boss" robots appear, armed with special weapons that must be defeated to progress.
The arenas are varied and feature basic obstacles and ledges for cover. The fighting mechanics are simple yet effective, using left and right arm attacks, X jumps, and triangle triggers for special moves. Different arms have different ranges and timing, improving your skills over time.