No goalies:
Hold A + B and press Start on both controllers.

Intermission control:
After the end of the second period, an intermission with two spaceships may appear. You can control the smaller ship and shoot down the larger ship.

Easy victories:
After getting a good lead, allow the CPU to score. Then, take the puck behind your goal. The CPU players will not be able to get it. Simply allow the clock to run out for an easy win.

When leading the score with only a short amount of time, try skating around in circles in your own end. Your opponent should not be able to get the puck before the clock runs out.

Penalty shots:
Skate around in front of your opponent's net in the middle and try to get hit. The referee should award you a penalty shot. If your opponent is in front of your net, do not hit him.