|Rusted Rusher's Current Lair|
|Location||Dr. Boshi's Base|
Rusted Rusher's Lairs. He has had multiple in the past, but has been forced to move for different reasons.
Rusted Rusher's lair is Dr. Boshi's base (after the events of Final Ninja Zero). He has reconfigured the inside of it a lot.
Rusted Rusher's first lair was located in a wasteland which was the remains of PULSAR Incorporated. It was a big, somewhat rusty fortress. however, an attack from a sky serpent had destroyed it, forcing him to make a new lair.
Rusted Rusher's second lair was located in an active volcano. It consisted mostly of metal bridges and walkways above the magma. Due to predictable problems from having a lair there, he moved again.
Rusted Rusher's third lair was a facility located in the caves from the Cave Chaos series. He eventually abandoned it, though it wasn't destroyed. It likely became infested with cave creatures.
- The sky serpent that destroyed his first lair is not the one he used to have as a pet.
- He had said pet sky serpent during his second lair. It didn't die from the euruption, but it escaped and was lost when the volcano erupted. It may have died through other means, however.