What is the 1000 weight for in Level 31?

Use the potato's head to bump it repeatedly; the interaction produces the yellow key needed at the right door.

When should I go to the chained door?

Only after the yellow key appears. Collect it first, then enter the door on the right.

Mr Potato level guide

hard 1 colors

Use repeated head bumps to manipulate the 1000 weight, collect the yellow key, and open the chained door on the right.

Layout: The potato starts on the left of a continuous floor. A wooden crate and a 1000 weight sit in the middle-left, with a chained arched door farther right.
Goal: Trigger the yellow key from the weight interaction, collect it, and enter the right-hand chained door.
Opening: Move right to the crate and weight, then use short jumps so the potato's head hits the weight.
Danger Zone: The weight interaction is easy to lose by moving too far right or resetting before the yellow key appears; keep the potato near the crate.
Mechanics: Repeated head contact changes the weight's position and eventually produces a yellow key that enables the exit.

Use the crate as a landmark and repeat short head bumps instead of holding a long rightward movement.
Do not leave for the chained door until the yellow key is visibly available.
Think in chain clears. The best move is the one that sets up the next two moves, not just the quickest current match.

Colors in this level:

Yellow

Walking past the weight before the key appears leaves the exit locked.
Using one long jump instead of controlled head bumps makes the weight interaction unreliable.

What is the 1000 weight for in Level 31?
Use the potato's head to bump it repeatedly; the interaction produces the yellow key needed at the right door.
When should I go to the chained door?
Only after the yellow key appears. Collect it first, then enter the door on the right.