My advisory group loves this game!
The introduced it to me this year and we often play it if we have some down time - its called....
ZIP ZAP BOING
The rules are fairly simple and an example instructional video can bee seen on YouTube. When we get down to the last 3 people, students can only zip or zap (since the boing becomes a bit pointless!). When it is the last two our winner is decided by a face-off. One student says "soup soup" and the other has to respond "soap soap". who ever gets tounge twisted first is is the runner up.