The Evil mole stars in the game Barry the Beaver.. He steals all the sticks from Barry's dam, and now Barry must get the sticks back. The mole takes the sticks to use for construction on his Tunnel complex, using them for supports to make sure the tunnels don't and cave in, and also for furniture etc.
He is the main boss of the game, appearing every now and then to challenge Barry. He uses machines to get around, and attack Barry. The first time you come across him during a boss battle is in a giant Turtle robot which fires Fireworks at you. It is beaten using rocks.