It's WIP, but still fun and playable! I enjoyed leveling up my power and growing stronger, while continually defeating the mobs. At a certain point I got completely overwhelmed, but I imagine that's how a game like this goes.
One thing I think this could hugely benefit from is some audio... good juicy battle SFX and a backing music track. That'd making the experience more engaging with minimal additional work!
Still, it's an excellent start. I could see a final version of this game being a blast! Great work!