Sorry I’m late, I just realized I had this sitting in my drafts!
- Yes, there is a MIDI to MakeCode converter!
- I like the name bit kart, it gives the game a cute retro minigame feel

- This is such a cute game!! The animations on the car and the camera movements really make it feel polished.
I’d say mostly what can be improved is adding what’s not there yet; perhaps a title screen, tutorial level, and some way to track your progress or ‘win’ the game/round.
I also agree with @sharpWill , you could make the car drift with multiple keys, that way if you’re keyboard layout makes pressing shift hard you could use something like A/spacebar.
(You should also make it so that pressing A doesn’t get rid of the 3D ray casting) - In terms of a CPU, im not sure a neural network is what you need. Most people make a CPU/“Enemy AI” by programming in a set of rules like “if the track turns right, turn the car right” and “if the player comes within range, use a short-range attack”.