I love the different leitmotifs you used in the soundtrack and how they play off each other in the songs, each song is is pretty short but they are filled with good bits and motifs to follow on.
I like how the last 2 songs on the playlist are in red due to how intense it will get and oh boy they go hard.
Monster bubble was crazy and totally felt like a fan-made undertale boss, great job with the song. 0:27 was also my favorite part of the song