The lair of D.O.O.M. was a mess since the last time T.U.F.F. agents Dudley Puppy and Kitty Katswell beat him. Snaptrap could see the destroyed lair from his prison cell. He was complaining about how much he hated T.U.F.F. Then, a police officer served Snaptrap his lunch. When he began to eat it, his fork turned out to be the Chameleon. Snaptrap asked what he was doing, and the Chameleon replied that he was going to help him escape, but only if in return, he can become an official member of D.O.O.M. Snaptrap thought about it, then agreed to the reptile's offer. So, the Chameleon turned into a bulldozer and they crashed out of the prison.
Later, at T.U.F.F. headquarters, Dudley was trying to watch TV, until Kitty explained he was watching the security camera. Suddenly, the Chief appeared on a screen telling them the news about Snaptrap and the Chameleon. They've recently built a device to pull a meteor towards Petropolis. Dudley and Kitty set off to stop the villains.
The gameplay feels like a game from Capcom's Power Stone series and MARVEL Ultimate Alliance fused together.
In T.U.F.F. Story
- Dudley Puppy
Dudley can stun enemies using his stun attack.
- Kitty Katswell
Kitty can use her claws to cut wires on security systems.
Keswick can hack computers to open doors, reveal secrets, or shut down robots.
Chief can attack enemies from a distance using a mechanical claw.
In D.O.O.M. Story
- Verminious Snaptrap
Snaptrap can attack enemies from a distance using a mechanical claw.
Francisco can stun enemies using his cartwheel attack.
Larry can hack computers to open doors, reveal secrets, or shut down robots.
- The Chameleon
The Chameleon can turn into any character when needed or wanted.