Fantastic Gears

Danger is approaching!
In order to prepare for the approaching danger, the world government established a school to grow a combat group composed of humanoids.
The humanoids from different countries must complete the fierce training of the “Gear Training School,” operated by the merciless principal!
The first class ordered by the principal is to avoid deadly obstacles!
Will the Fantastic Gears be able to receive the best grade?
The cruel class begins!