A simple game of freeze tag. A couple people would start off as the tagger and have to tag people using a crowbar. Once you're tagged you get frozen + a countdown of around 30 seconds. If the countdown reaches 0 you become a tagger but if a runner manages to hit you with a crowbar you become a runner again. Taggers would get a slight speed boost but runners get a like a discomb to make it more fun for them.
Here's my concept art:

Here's my concept art:
