I feel this game is trying to encourage going fast à la Dead Cells, especially after reaching the end and being told you took to long (I assume there is an ending where you get there fast enough to get the treasure proper), but the game itself felt just so slow and uneventful, with enemies just standing there and coins being few and far between.
Swinging is fun, but I felt that it could be sped up a bit, too. Maybe just a bit too floaty in its current state. The concept is there and interesting, but I think the time-limit of the jam might have hindered things too much.