The Crazy Monster Truck is the true final truck to be unlocked in Excite Truck. It is essentially a more powerful version of the Monster Truck. While it has the same design stats as it's original counterpart, it differs by now being on an "infinite POW mode", and therefore when playing as this truck, all POW items are removed. With this ability, the Crazy Monster Truck can break trees and smash trucks more easily. Also, the temperature never rises, so it is impossible to overheat this truck, making it the only truck to have this ability. However, it is still vulnerable to hard rocks and deep waters, which are the only factors that will cause the Crazy Monster Truck to crash.

To unlock this truck, the player must obtain an S grade in all Mirror Mode courses, completing the entire Excite Race Mode.