Opening and closing doors is an important feature of the game. Doors only open towards their doorknobs. Opening a door when a cat is near it will score 50 points and stun the cat (knocking a Meowkie down or Goro backwards) Meowkies and Goro can open doors if the door opens away from them (doorknobs away), or walk through opened doors. They cannot open blue doors. Blue doors, when opened, blast a slow moving "microwave" in the direction of the doorknob that will trap any cats it touches and remove them from the board when the wave reaches the edge of the screen. The more cats caught, the more points gained. If Goro is trapped by a wave, the score is doubled. Cats removed in this way return shortly from above.