Gaspoids are spherical in general shape, except for the top, in which the guard piloting it is inside. There is also a green glowing canister on each side. The guard inside is wearing a Brodie helmet and a pair of goggles.
Gaspoids have a guard on them which is shielded and cannot be killed. The entire vehicles cannot be destroyed, and must be avoided. Even touching the gaspoid will lower the player's health. They are usually seen, standing in one place, but they can also be seen moving vertically.