I was playing the game referenced in this game just earlier. Here is not the place to be reviewing that, though...
Your games are often very out-of-the-box, yet they always seem to hit. It's been a long time since I played Cave Story; it never hit me quite the same way it hit some people, but I still enjoyed it.
My earliest "game deving' was creating custom levels in Age of Empires. Not much programming involved, but you could setup conditions such as 'unit has entered an area' to trigger event, which is not that different from what I do for hit detection in all my Godot games. Modern game deving really is quite accessible.