Badminton. I only run because the P.E teachers told me to.
Lovin' the way I can move around actively and smack the ball to pwn them. But I've been playing less and less because of my tight schedule.
It's fun, especially when I'm in a 1 versus 1 situation. I can't breathe easily when I stop moving, since I have this abnormally high heartbeat rate about 90 BPM. But I'm still okay. It's my favourite sport.
You're right about the R2. I play with a guy who had one, and he wound up trashing it as it just sucks in every category. I think he may have had a defect though, as his air tank kept leaking at the connection, and he tried several tanks to see if it wasn't just the tank.