This is a 1s1s Mario game. That means that it has no backdrops, it is just one sprite that is both the backdrop and the character. It is not a remix of the one you're thinking of. It has various levels from different Mario games. If you know where I can find some old 480*360 Mario levels, please give a link in the comments.
I found the pictures on the internet, but the scripting is by me.
