For anyone looking to do something similar, I used this asset to manage the multiple inputs. https://github.com/matjlars/godot-multiplayer-input/

If Sonic & All Stars Racing Transformed has become retro then it's that lol.

Do you recommend this way of learning over YouTube videos if I were to introduce others to the engine?

I've got an RG505 and can play up to ps2. Was just looking for games that might be fun or nice to play on a bus ride.

Make a game where there is a countdown and you have to stop it as close to 0 as possible. Something like this Mario Party minigame: https://www.youtube.com/watch?v=hoNduqVEdTU

For extra fun, make it so the display says ???? and the player has to count the remaining time himself. The duration can also be randomized, sometimes 5 seconds, sometimes 3, sometimes 12. Good luck.

Thanks!