The visuals on this is brilliant. The combat is very smooth. You wouldn't think this was made for a game jam.
I'd say the only thing I wasn't a fan of was the actual mechanic of needing to take damage - I thought it was a bit redundant! Just defeating the bosses is very good fun and perhaps the box you're fighting in could have been the unique mechanic somehow.
Nonetheless, this is a 5 star game!