Here is a short demo of a POC I'm working on - a Mario style engine for Atari, written in C (CC65), running on PAL Atari 48K or higher.
It is still an early work in progress, so some visual/game glitches can be seen in the video.
With the exception of the player, the graphics are not a direct rip of the SMB game - the sprites are original 12x12 assets, made to look like the original 16x16 sprites, and the music composed to fit into the Atari 4 voice octave range.
I plan to open source this project later in the year with all original assets.
