I finished that game a few years ago (was most definitely worth the 60 cents I paid for it).

From what I recall, to finish the final level I was relying for the most part on 'muscle memory' in relation to the familiar patterns. I would visually interpret what kind of pattern it was, my position relative to the pattern and then there seemed to be a conscious disconnect to the actions I performed to get through the pattern.

I think it's interesting because the actions I'm referring to weren't merely a sequence of button presses performed as fast as you could. There was a critical factor of very small differences in durations between actions and how long you execute actions for that seem (and I assume are) completely beyond my conscious abilities.