That was incredibly sweet and touching. The writing is lovely, and the platforming controls feel really nice to handle. I'm especially impressed with how well you did the walljump mechanic, that probably wasn't easy to get right. The graphics and music are really good as well.
Some parts of the game are really difficult and require some almost pixel-perfect movement. I managed to beat the game, but I could tell that some levels would be really frustrating for other players. I'd tone down on the spikes, especially in areas where their placement is designed to catch you if you dash a little too far or jump a little too high. I'd also increase the radius of Anger's explosion attack, I think it's a little too small given how fast you move.
Great job on the game. It's a really nice entry and I'm glad I came across it.