Okay, so, I'm gonna teach some of you something real quick. At least I assume I will, since it seems like a lot of people haven't figured this out.
When you're loading the level "Into the Game" there is a tip that appears: "You can play on the opposite team's machine too."
This is somewhat misleading, since it doesn't give you the real ramifications of doing so. If you are playing on the red team but you use the blue cabinet, collecting coins and gems raises the score for your opponents. If you are using the enemy colored cabinet, you should be collecting EXCLUSIVELY bombs to trash their score. Otherwise, you're helping them beat you.