There's zero chance of making a game even remotely this lightweight with any modern 'game engine', is there. It was built for Win98 era, which that OS wanted 16mb of RAM (Win98 took around 4mb of that to itself), so it was designed to run on literally anything that could power Win98 itself.

Even if I factored in recreating the game as practice while targeting 640x480 as well (or hell, just utilizing its assets directly since they're all GIF/JPG format), and loading nothing than absolutely what's required on the current screen to function, there'd be no way to get it under 100mb of RAM utilized in something like Unity or Godot.