From perpetualkid.com this is a fun game as gift or for yourselves:
DUAL VOLTAGE LIGHTNING REACTION
New Dual Voltage Lightning Reaction has two shock settings – Wimpy and Knock Your Socks Off! Can you hold your own? Pit your reactions against up to 3 other challengers – it’s fastest finger first and the slowest finger gets the SHOCK. Push the start button and the light in the center of the game flashes red for a random time – once it changes to green all the challengers must push their red trigger on their handle. The slowest person is the one who gets SHOCKED!!