So I'm the wrong person to review this kind of game, I'm terrible at them! And didn't have a controller plugged in. But briefly: I thought the music was very theme-appropriate, and it's interesting to see stress as a mechanic in this kind of title. The character design was quite interesting and colourful too.
The controls are what held me back from progressing much further here. Arrow keys are rarely useful to me, would've loved WASD as an option, and space to jump or fire.
I thought maybe the tiles could use a bit more distinction between background (can't interact with it or jump on it) and platforms (can interact and jump on) as sometimes I tried to jump on things that turned out to be part of the backdrop.
I noticed that the game didn't adjust terribly well to changes in window size... full screening led to it being drawn in the top left corner, so might need a tweak there.
Overall though, an interesting and colourful submission. Nice work!