What a unique and interesting little experience.
The game really got off to a fast start where it felt like the character was ZOOOOMING so quickly. But I got used to it just as fast I think so it wasn't really an issue to be honest.
The events/dialogue/progression was really well done and fun. It felt very anime-esk with the giant swords and the random space girl running around in her underwear. The ending was interesting too. I was surprised it didn't end with the shadow fight with the dual swords.
If I'm being honest the combat isn't very fun. I wish I could get other weapons or upgrade my ranged attack cos it's really slow and not that interesting. The sword on the other hand is just insane and is by far the best weapon to use the little combo is really well done and I love that it moves you around too.
The art was fine no real concerns the environment was a bit boring but I appreciated the different traps and falling down the pit Zelda Link to the Past style was a really fun choice.
Despite the music bug at the end which you noted in your game description the music was great and fit the game really well.
Overall it was a fun little experience with a lot of heart and potential.