The controls are jank and I love it. It really increases the tension as I furiously spam U/O and I/P trying to get the jump in on my opponent. The gameplay reminds me a lot of this old Miniclip game called Wrestle Jump, which I played a lot back on the primary school computers. I don't have a friend with me right now to compete with, but I imagine it to be quite fun as well.
As far as presentation goes, I think you nailed the art style. The characters, even with static textures, felt like they wanted each other dead. Honestly, the only downsides in this game that I can think of is that the controls menu is a fat wall of text and could be simplified, and that the game might start to feel a bit repetitive after a few rounds. The latter is mitigated tho with the addition of AI levels, which I found to be a nice addition. But overall, this was fun to play!