I used to play it at my local news store I think in 1987 or 1988. It was a side-scrolling platform shooter where you descended into a complex of some sort, and the main enemies were robots... The trick to this game was that when you started the level, you could go to the left or to the right. If you went right, you slogged through the level, while if you went left you skipped to the end of the level and got a lot of bonus points, I think you got a million points for going that way.
Can anyone help? I know the description is fuzzy at best but hey, that was almost 25 years ago now. I would be even more grateful if this game was in emulation, and someone knew how to get it. I have an updated version of MAME with the current ROM set (0.137), but after doing several searches on my own I simply cannot find it.