I'm very pleased with how this is turning out - this is a far better port than I initially gave it credit for. It's a bit odd working with this because the player sprite is drawn on one frame and then all of the enemies are drawn on the other. On a CRT I imagine the flickering wouldn't be as bad but it's a bit disconcerting trying to TAS this when you can't see yourself literally half the time. Having said that, I am extremely impressed what they accomplished on such a limited platform.
Addresses for this game (should be up shortly):
https://tasvideos.org/UserFiles/Info/637936906484319946