There were a few tweaks to the assets, but nothing too crazy :P I think GDevelop is perfect for that exact simplistic 2D games, it’s open source and super beginner friendly, although it takes some time to get used to, everything is built-into the engine - Piskel for pixel art and, and jsfxr for simple 8-bit sounds… You can get started to prototyping lots of ideas really fast, I think a whole platformer is possible without writing a single “line of code” -> Which is kinda like Scratch, if you’d like to get technical there’s also an option for JavaScript… And they have also implemented 3D environments, but I haven’t really checked that out