Here's my two cent on this.
- Introduce an arcade to the forums, it doesn't have to be pokemon related since it might cause conflict with Nintendo.
- Player with the highest score in each game gets a "trophy", "medal", whatever can be used on the forums. Maybe even points.
- Player with the overall best score (all the games) gets a "trophy", "medal", whatever can be used on the forums. Maybe even points.
- Depending on the number "trophy", "medal", or points, these winners may get 1 free token, or gets access to a new "shop" feature in game, in which, they can trade these points.
- Points have to be distributed at the end of the month to avoid an inflation of items.
- The same person can only win X amount of times until Y amount of months has passed.
Since you aren't really selling/donating/offering real Nintendo product as a prize, nothing can actually be done to you. They usually go after a said group if they intend to make a profit out of it. Don't think virtue poke dollars is considered a "profit".