I can't get it to work! I've checked gamefaqs.com, and it told me how, but obviously it must be wrong. It tells me to use P1 to open up the betting option after the first round, but there's no way to do that between rounds. I'm assuming it meant the next match, but the game won't let me accept the bet without P2 participating, as well.

Was this just a glitch, or have I gotten a version of the game that the trick was taken out of? Please help!