Upcoming Wii title Super Smash Bros. Brawl will feature a spectator mode that allows people to watch matches without participating. Not only that, the watching mode will allow Wii users to bet on the winner of the match they're watching!
According to the game's official site:
Match selection is handled automatically, and absolutely no names of any players can be seen. It feels like there’s a continuous broadcast of matches on your television! Even if you don’t play, you can enjoy the battles of other characters!
Here's the official lowdown on the betting aspect of the spectator mode:
And at the beginning of each match, you can even bet coins on the character you think will win. I’ll bet some coins. I’ve got a winner! Glean what hints you can from the stages and combatants and try to deduce the winner. Of course, if your pick wins, your coin count will increase! And the more players in a match, the higher the payout. There may even be extra prizes.
More details at the Smash Bros DOJO!