Many of the weapons in the game are improvised mining tools, such as a rotary saw, a plasma cutter, a hydrazine torch used as a flamethrower, and others. All the weapons feature a secondary fire mode; for example, the plasma cutter can be rotated to cut off vertical limbs more efficiently. Isaac can also use special abilities, allowing him to slow down enemies or pick up and throw items from a distance. A few sections in the game have Isaac float in a zero-gravity environment. Ammo and tools can be found during exploration or purchased in automatic shops available on the ship. Workbenches can be used to upgrade Isaac's weapons and armor.