Muruchi, Doragory & Metron Jr.

In the midst of Ace's battle against Alien Metron Jr. and Doragory, a new combatant arrives in a cloud of smoke - Muruchi II! With three opponents now facing him at once, Ace is severely outclassed, and the episode ends on a cliffhanger as the three enemies begin taking turns beating the hell out of him.

Example of:
Villain Team-Up