How do I change my game's outside theme when I press play

[CorruptedSword]

Have you seen other games like that?

[CodeAlpaca]

I’m assuming you mean stuff like what the arrows are pointing to? Just background stuff outside the screen window.

If that’s the case, it’s an Indie feature

[Flying_Fajita]

You can’t change the theme mid-game. However, you could fullscreen the game and replicate that, not sure why you’d want to though

[CodeAlpaca]

If you full screen the game, I’d imagine that you’d want to see the entire game