One-Way Time Machine

The One-Way Time Machine is a treasure in, that can be found in The Hollow Sky area. It is a dark grey alarm clock, which is two and a half times taller than Olimar.

Collecting the treasure
After the second shaft of the area, instead of proceeding to the right, you must go to the left. If you have 16 Pikmin or more in your group, you can push down the huge wooden stake that blocks the way to the treasure.