Overall, it's polished and fun to play. No gamebreaking bugs and such. Also art and sound is awesome. Gameplay mechanic is pretty simple yet can be fun.
But there are some assets that don't blend with each other, and i think it's because of resolution difference.
Also each NPC has 2 button prompts, but only 1 of them works. Maybe delete the other button prompt or you guys can fix that so both button prompts work as intended.
Gaps between platforms are covered by foreground for some reason? So me as a player couldn't see that and couldn't anticipate.
And i beat the boss with a trick. If i stand in one of the minions in front of the boss, the boss won't attack and just stands there.
And one more thing, while the enemy designs are good, i think it's better if you guys can give enemy a visual/audio cue or a bit of delay before performing an action. Because that way, players can anticipate or counter, because in my experience fighting the skeletons, i couldn't dash or jump or evade their attacks because it's way too fast.
Other than that, this is a good game. Looking forward for your future projects!