Comment by progmetaldev

I've seen my son play Sonic the Hedgehog games in Roblox that were straight rips from the original games (at least visually and play-wise). I'm not really sure how it was done (extracting actual assets from the game, or just a dedicated user very familiar with the original game), but there are quite a few recreations of other games on Roblox that are just as good as the originals.