I'm blown away. This is such an impressive game jam entry! It really does feel like the demo to a full release, I'm glad to hear the team has decided to keep working on it!
The only thing I can think to mention (and this is specific to it being for a game jam) is that it didn't feel very retro to me. I really like the premise of 1980s break dancing battles, I wish the character and environment designs really captured that feeling. Addidas jumpsuits, gold chains, headspins on cardboard on a public basketball court, you get it!