Asto Robo Sasa is an NES game released only in Japan (previously on the MSX) where the goal of the game is to make it through 16 stages and win the game. You accomplish this task by either shooting out or picking up with your character a group of energy pods spread out through the level. You can find the Game Center CX take on the game (where I discovered it from)
here.
What is unique about this game is your characters' movement is controlled by firing your gun in the opposite direction and allowing the equal and opposite force to push you in the other direction. This leads to a game with difficult controls and makes decisions on when to shoot enemies and boundaries more difficult because it can affect your velocity and position.
The fastest TAS version I could find online was a single player run that ended in 11 minutes 31 seconds as seen
here.
I am attempting a 2 player run and, while I am only on the 5th level
I am already 7 seconds ahead with the major advantage of 2 players yet to come in the much more complex levels.
There may be improvements in what I have done so far but I am just trying to get a good first attempt generated. If anyone else has feedback or someone better at TASing than me wants to give this game an attempt I think it could end up being an interesting relatively quick run. As I said I am going to try to continue with this run and get it to a publishable state but work and family has severely cut into my previously plentiful TAS time so if no one else takes up the gauntlet it could be a bit of time before it is done.
RAM values I have found so far:
Player 1 X-Position: 0202
Player 1 Y-Position: 0201
Player 2 X-Position: 0209
Player 2 Y-Position: 020A