"Massive Morphy Merge Mechs" is the thirty-fifth episode of the first season of Penn Zero: Part-Time Hero. It premiered on September 29, 2015.
Penn, Boone, Sashi, Rippen and Larry must figure out how to work together when they merge as giant metamorphosing robots, battling for control of an alien planet.
- According to Sam Levine, the episodes concept was inspired by Gundam, Transformers, Voltron, Power Rangers, and even Thomas the Tank Engine.
- This episode is the first to show both the heroes and villains having to work together to complete the mission.