 In addition, there are quicksand, which sinks tanks' tracks and any dropped objects, mud puddles, which cause tank tracks to get muddy and slow down until cleaned, lava, which burns anything that touches it until put out by water or waiting, acid, which hurts anything that touches it until taken off, and sheep-dip, a green goo which energizes sheep and cleans off parts.In combat, each part has its own health.If the health reaches zero, the part will fly off the tank, destroyed.