well i thought that there should be a few more games in the king krogmo colosseum so i though of this:
there are two teams. the screen is cut in half by a wall and on each side at the bottom there is a team. at the end there is a team button behind a monster unlocking gate. between each team and the gate are loads of monsters. each team must kill all of the monsters and get all of their players on to the button before the other team does.
I'm going to skip the all too many complaints I could make about the complete lack of details and elaboration and ask this:
What is stopping these games from lasting less than 2 minutes and absolutely flooding the game with quick Krogmo Coins and ruining the trinket market?