The Four Countries Catch
Split the gym into 4 equal sized areas. Add 1-2 catchers in each area, but have a lot of players.
Each catcher has to try to clean their own area of free participants. If caught you have to do an exercise (catcher decides what) until someone free copies the exercise 5 times together with you. If the exercise is copied everyone doing the same exercise is free.
The catchers works together and has to catch as many as possible withing 2 minutes. After 2 minutes the number of caught persons are counted. This version can be played without the freeing option of Game 1.
You are only allowed to move in certain ways in each country: hopscotch, crawl, jump, run, both as catcher and free. The exercises should extend on the movement pattern, i.e. if running, do running with knee lift. Could be played without the freeing option.
Game 3 can be done without exercise, so that you just have to move in special ways in each country.
The exercises could be related to fencing footwork.