Advice on: For a Simple 2.5d Game, Should I Use XCode or Unreal Engine?

Hi. If you're going to do a 2.5d game (half way between 3D and 2D) or 3D characters but the view is strictly side view 2D), a very simple game (as slightly more complex that Flappy Bird), do you recommend using XCode or Unreal Engine?

Where is the best tutorials for mastering XCode by the way, it'd be nice to master (become an expert) that as well after earning hopefully a bit from the game via ad revenues.

I was into Visual Basic before but that was just for thesis back in college and it'd be great if all apps I use run on macOS, instead of Boot Camp so there's not need to worry much about malware (especially when logging the passwords- one's quite anxious to do that on Windows 10).

Thank you. God bless. Proverbs 31