I really liked the undertale-y part. The draggy movement, the forgiving hitbox, it all bought actual difficulty in nearly all fight phases
"You wanna start fighting over something stupid?" was funny
An issue I felt was that the whole vibe of the game was being miscommunicated by all of its individual parts.
1. The music, on its own, gave a very "eerie" vibe to the game.
2. The art, however, was, well, not-eerie
3. and the the UI being unpolished didn't help
That being said, all these elements were bringing something to the experience
Cheers!