Deeprunner dev video #2 - early version running on the SGI O2

This is a development version of "deeprunner", a game I'm writing for the "retro platform jam 6", running on the real target machine, the Silicon Graphics O2 from 1996. Source code repo: https://github.com/MutantStargoat/deeprunner Jam page: https://itch.io/jam/retro-platform-jam-6