1. I didn't have enough time for audio. I might add some later.
2. I thought about having the intro text appear 1 letter at a time, but I didn't want to spend too much time with that.
3. My lack of good hardware made the Unity editor more laggy, which impacted the play testing. Even after play testing on a standalone build, I didn't pay much attention to unresponsive jumps because I thought it was my keyboard, not the game.
I had to cut corners because this is my first 3D game, but overall I'm glad you liked the graphics. I might add better tutorials (that require you to actually use a skill,) a speedrun timer, and configurable settings(to help with performance on less powerful hardware, and to allow for better graphics on more powerful hardware.)