I got it to build! Here's a ROM I built tonight (for ColecoVision)
SPAZATAK.ROM
DOSBox works - but it's slow. Doesn't seem I can max it out, so builds take longer than I'd like...
This would show you, perhaps, what Turmoil might look like on the TI. It's actually harder than I remember.... I'm still not sure it's fun, though...
This game is missing:
sounds pauses between deaths / button mashing problems pauses between levels / button mashing problems.
Get your Dad to load it up in a ColecoVision emulator and let me know what you think!