Sounds like a VRAM problem (as in not enough).

It’s under the features section (where it says co-op, controller support etc.). Should be highlighted in yellow for all 3rd party requirements (including kernel and non-kernel anti-cheat).

Steam has it listed on the demo, and it will likely be listed upon release, not sure what their stance is on pre-release, but this is a requirement now on steam to list it.

This looks like a raspberry pi clock project, with a Mario theme - it’s not a terrible price if you don’t want to build it yourself (at least I think) - but I doubt you can customize like a self built one.

Also if you make your own you’ll probably get sued, so just don’t sell it I guess lol