Probably the most exciting part of the trailer is that it all but confirms multiplayer which was probably the biggest missing element of the first game.

Centre stands need to be way more sturdy to hold it up. You can buy aftermarket VESA centre stands though if you can’t wall mount it.

Looks like pretty classic underextrusion. Have you measured the filament diameter to see if it’s exactly 1.75mm? Even 0.1mm is enough to start causing problems. It’s prusament so should be good but worth looking! I can see underextrusion problems in more than just the problematic pillar, so worth playing with retraction and perhaps increasing temperature.

There's a lot out there for Arduino which is a great platform for learning. Arduino is a microcontroller you can use to read button inputs and control LEDs, all the way up to controlling robots and all sorts of things. It's pretty hands on compared to a lot of pure software stuff and is often sold in starter kits for kids learning. Worth looking into!

Meshmixer is good for exactly that but it’s been a long time since I’ve used the software.