Atari 5200 Scrolling Platformer POC final update

This now contains everything I wanted try out since posting the original video, namely a power-up (the ninja) and brick explosion (via a ninja head butt). Being POC code, quite a lot of it is thrown together quickly and will need some tidying up. Otherwise, I think it provides a good basis for going forward. One of my concerns was that there wouldn't be much love for the low resolution, but it's definitely been more positive than negative. Currently it's about 18.5K in size, so I think a decent enough game would be possible in a 32K ROM.