When I run Ian Bell's tank demo on my 32K devcart, it has the same glitches I see in some emulators. Has anyone gotten this to work on an NTSC NES?
He had at least 2 versions of a tank demo, one that was 1P only, and another that was 2P (split-screen)....um, as far as I can remember. So maybe you should test out both first?
It was a long time ago, but I also tried out his tank demo on my NES devcart equipped with EEPROM and 8K CHR-RAM, and it worked great on my NTSC NES.
I have run the single-player version on a PowerPak in a front-loading NTSC NES.