So... dumping this stuff here, since I will never be able to actually do anything with this myself. Maybe someone else will be able to actually port this?
Short story long:
Back in 1984 I got my first computer (a VTech Laser 210), and it kind of stuck with me since then. So when I discovered some forums and stuff on that back in 2002, I made this stuff for a Barbarian port (which, as you can see, was going to be a collaboration together with Frontier and GOTO80 btw):
The Laser 210 has a high-res mode of 128x64 (wow!) with 4 colors. Yeah, the PICO-8 is waaay cooler! ;)
So today I ported most of this for the PICO... not completed, and the logo is messed up since I wanted to conserve sprites by re-using A and R (and it's not really working... yet...). The snakes need a lot of work, etc.
But, it seems it's possible to push most graphics into the PICO, and I think it should be possible to build the three fight areas too.
This is what the three areas looked like in the original Commodore 64 release (back in 1987):
And here is my PICO-8 version from today:
If anyone wants to have a go at it, I can try to complete the graphics... :)