I just love games that experiment with the locomotion system so I really enjoyed this one!
I was expecting motion sickness but it was actually very satisfying and enjoyable to jump around by clenching your fists and pushing your arms down. I think this concept could be even more engaging if integrated with an arm swing mechanic for regular locomotion instead of relying solely on a joystick. Overall, I think it's a cool idea with the potential to become a full-fledged game