LOL, Pidgeon!
Blast Processing was a bullshit marketing trick, to an extent.
True, the Genesis had twice the raw processing power of the SNES at the time, and they took advantage of that. "Blast Processing!"
However, it's AV chips lagged behind the SNES. However, for a system that rolled into production in '89, that is quite impressive. It was somewhat similar to a semi-high and Macintosh at the time, and even at that point Macs were MUCH better for gaming than PC's.
Genesis games tend to be able to have more NPC's and shit on screen to take advantage of this. Correct me if I'm wrong on that.