Found a discussion on reddit. Someone used an emulator called Teknoparrot and they got All Star Carnival running on the Steam Deck in a permanent adventure mode with an English patch. Obviously this is a no-go legal wise unless you actually own an All-Star Carnival cabinet.
Also I don't know how it would properly translate the arcades touch style control panel to the Steam Deck input options. The fact this is possible though fascinates me.
Me personally? I'm content with the demo until I get my hands on the full game. I also been revisiting Curtain Call on my 2DS XL. I recently bought the Digital copy of Theatrhythm and all of it's DLC before they shut down the 3DS download servers.