Killer Instinct

You can skip 5 matches worth 25 KP to make things easier or at least shorter. So you only do 5 matches instead of 10.

EDIT: This doesn't work anymore. They got rid of it. :(
Bastards.

This cannot be won by paying to skip to match 10. For all characters, play Survival mode on easy. Just attack the computer into a corner and spam attacks to win. I just rotated the left thumb stick (starting down and then rotating away from the CPU) and spammed light kicks and the matches would be over very quickly.