Description from the publisher: Behind hidden alleys and in dark basements, a new underground league of robot combat has begun. Engineers bring their latest creations to the arena, and battle with each other for money, glory, and power! In Diesel Demolition Derby the players compete in a series of quick arena matches by fielding their robotic contraptions in battle against each other. Each match is composed of several rounds where the mechanical warriors fight for the right to remain in contention for the final showdown. In each round, the players secretly choose a card and place it face-down in front of them. They then simultaneously reveal the cards, and the ability of each card is resolved. Whatever cards remain in play are then added to each player's lineup. At the end of the match, the player with the most power in their lineup is the winner. The first player to win 3 matches wins the league and becomes the champion!