So I’m making a game with a train, but I want to make it look like its moving. I’ve seen it in a few games where the background and floor will be moving but when you fall, you notice that its actually just a moving background. Example: Infinity Train - Pre Alpha (MASSIVE VISUAL UPDATE! - Roblox
I’ve tried looking at the devforum for this, but I haven’t been able to find a post with a solution on how to make this.
Please help 
Is that not good enough? If you want to hide the illusion, then you could apply a force to the character when they touch the ground. You can also eventually cover the screen so that they can’t see the end of the floor.
You can also add some dust particles to help with the immersion.