You see how everyone's talking about Beat Saber? That's not a coincidence :)

Seriously. What a fun game. And it scales really well -- I play most maps on Expert+ 120%, breaking into 150% speed. Here's a recent example (this one is just Expert though): https://www.youtube.com/watch?v=gFCxrNS9GgY -- And one on Expert+: https://www.youtube.com/watch?v=YdLZ6B2AB1Q

The only criticism I have of Beat Saber fitness-wise is that it doesn't train many muscles. It's mostly the shoulders, arms and a bit the wrists. Some songs train your core but you can't rely on that. It's awesome for rythm and reaction speed, however, so it's a good mental training too.

The sweat is a problem. The silicone masks are great (I use the VRCover ones -- https://vrcover.com/ -- Oculus sent me a pair because I had skin problems with the foam one), but they do not let my head breathe at all so I sweat even more. They're definitely less gross, though.

For exercise I recommend ring fit

I had it and didn't care for it, and sold it to a friend who couldn't find it in the stores.

Thanks, though!