Nuclear Reactor Robot

The Nuclear Reactor Robot is an enemy in Earthbound and Mother 3. It explodes when it is defeated. It is based on the SuperEnergy from and is a more difficult version of the Atomic Power Robot in both of the games.

In Earthbound
The Nuclear Reactor Robot is an enemy in EarthBound, which can be found in the Cave of the Past. The visual differences between it and the Atomic Power Robot are pretty small, and are mainly additional shadings and some minor adjustment in the coloring.

In Mother 3
The Nuclear Reactor Robot is an enemy in Mother 3, which can be found on the laboratory-themed floor of the Empire Porky Building. In contrast to the Atomic Power Robot, it has now changed from gray to yellow, has a green eye-like component instead of a red one, and has an "S" imprinted on it.

Battle Memory description
"Replenishes even more energy than the Atomic Power Robot, but its explosion is all the more powerful, too."