This game looks so fun!

I've done this. It's fun. Advice: do not do this along the hallway to your only bathroom. You will regret it.

Soak the yarn in pure capsaicin so you will actually have a negative reason to avoid the laser and avoid cheating! Sounds fun.

I've done this with real lasers. It's just that the lasers don't kill you but they are legit lasers