A mini monster truck is a four-wheeled vehicle built on a tubular chassis. It has four wheel steering and four wheel drive.A mini monster truck is styled after and resembling an actual monster truck and built on a smaller scale than a standard monster truck. Mini monster trucks are typically custom-built vehicles, and are most frequently used in youth sports entertainment with child drivers.Mini monster trucks typically have the same features as standard monster trucks, usually to half-size or one-third scale. The mini monster truck is not a modified truck, but it is designed and built from the ground up just like a full-sized monster truck. Special features are built in to allow for an adult to move it around when the child drivers are not available.