a.k.a an easy obstacle with Mover

The simplest obstacles are made using the ‘Mover’ component. So let’s place a platform that will move back and forth, which can help you jump a gap that’s too wide. Play around with placement until you’re happy, then + add the Mover to it.

Now you can alter the direction the platform will move in, and its speed. Make sure to select ‘Yes’ to ‘Auto-Start,’ otherwise you will have to create more logic to make it move.
Selecting ‘Yes’ on ‘Yo-yo’ will ensure the platform will move constantly back and forth, instead of once in one direction.
Tip: Some components, like Mover, you can preview in the editor without having to test the game — just look for the triangular play button on the right-hand side of the menu: ▶️