Okay, so, I like the idea here of Stepmania meets boxing game, but the actual implementation needs some work. The engine itself is...vaguely acceptable. It's not the worst reimplementation of Stepmania I've seen, put it that way. But, honestly, I'd say spend some time with Stepmania, play some charts for it, practice making some charts with it (getting feedback being the important bit here), and gain some experience with how charting a Stepmania-like game goes, then come back to this (and maybe get some better music while you're at it because that five-second loop is not a bop). The gameplay itself is mostly there but the charting is what's holding you back right now.

(Oh, and for anyone who isn't the developer reading this, I dunno. Maybe it's gotten better since I wrote this, maybe it hasn't. It's free, it'll take you like maybe two minutes to find out, just give it a try.)