New Cloud Multiplayer version out now! https://scratch.mit.edu/projects/141594035/ Use WASD or arrow keys to move. Use items with space bar. You can get items from passing the finish line, just as a proof of concept. If you want, try to remix and add item boxes.
The second account of @Link888 My best projects: https://scratch.mit.edu/studios/157195/ Moved over here because it is too incomplete to be on my main account. The AI is completely bugged out despite working in Scratch 2.0, but the project runs much smoother now in 3.0. The base engine has been programmed in with some base graphics and assets. Has been updated on my main account (see instructions for link)