I loved the BGM, it was super cute and it definitely has a fun and child-like feeling when loading up the game. I like how there is an option to choose characters before getting into it. The main objective of the game is not hard to follow which is good for the intended target audience. Once in the game, I loved the monster theme and environment of the first level. And then a whole new theme once you complete the first level. I did have some lag issues when playing but that's probably because my PC is old lol.
One criticism I have with the game is probably the camera controls. The movement controls came naturally but I felt a little awkward having to hold my right-click to move my camera around. Also the jumping was kind of hard but I'm pretty sure that's just skill issue on my part lol
Great game :)