There could be a monster that doesn’t get regular move cards. Instead it gets move cards that say “Swap places with any allied creature.” The monster would be very though. There would be a level with one (or a few) of these monsters, but also lots of puny monsters. The puny monsters would run at the players. This new monsters would not be able to do that. When a puny monster was next to a player, the new monsters would swap places with the puny monster. There could be an advanced version of the monster. Its move cards say “Swap places with any creature.” Then there could be a master version of the creature. Its move cards say “Chose two creatures. They swap places.”
There could also be a monster with move cards that said "Swap places with any enemy." Then there could be one level with victory squares. If a player tried to get on a victory square, the monster would swap places with them.