The participants try to hit another player with a foam/softball (for safety reasons, only leg hits may be allowed). A maximum of three steps may be taken with the ball. If you are hit, you have to complete an additional exercise (e.g. wall sitting or forearm support) until the player who previously hit you is hit. If a thrown ball can be caught, the thrower must perform the additional exercise.
Variant:
If a participant is hit, they move into the "crab position" (four-foot stance facing upwards). If he catches a standing participant by the legs or a ball, he may actively participate in the game again. The participant who has been caught moves into the "crab position" as a punishment.