Secret Level 3: Asteroid Robot Factory
Enemies: All except Gophers
This level is thick with enemies of all kinds. The map looks kind of like a building with a lower floor and upper floor. It’s not that big but it may take a while to get through due to the number of robots.
Reactor: After opening the Red Door fly straight ahead to find an Invulnerability. This should make it easy to take out the Reactor and any robots.
Exit: Out through the Red Door, through the Yellow Door and straight ahead to the Exit.