Join the gear-teeth to the gear with a “tap” operation and rotate the gear as much as possible.
If the engagement is bad, the gear will be broken.
When the idle rotation of the gear lasts, it will be also the game end.

Gear engagement is very severe, you may end up without advancing one foot.
Since you will be able to grab the knacks if you do it several times, please challenge patiently.
Let's aim to advance 10 feet first.

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