Unlimited Locomotive

The Unlimited Locomotive is a treasure in. It is actually a plastic toy train, colored blue with yellow and red highlights.

Collecting the treasure
It is half-buried in the northwestern corner of sublevel 2 of the Industrial Maze. It is behind an electric gate, meaning Yellow Pikmin or Oatchi with the Anti-Electrifier (Oatchi) are required to collect it. To collect this treasure, it's best to move the base to the same room, which requires pressing the button at the northeastern corner, then destroying the electric gate near this room.