Finally, a RetroActive I can get behind.  

  (Knowing my luck, Secret of Mana will win.  I just played it a couple of months ago.)
I'm going to throw my vote in for 
NINJA SPIRIT, seeing as how I was the one to 
nominate it.
Here's my original pitch.
I'd like to nominate Ninja Spirit.  It's a platformer for the TG-16 meaning it's perfect because no one's ever played it before.  
  It's fairly similar to Ninja Gaiden, but much more playable from what I hear (read:  it doesn't have a batshit insane difficulty level).
It has been recommended by Jeremy Parish as well as our own Steven Rodriguez.
Fun fact:  It was the first game to ever receive a perfect 10 from EGM.
Doesn't it sound fabulous?  

EDIT:  Can I request that this and future polls allow for vote switching?  If I'm the only one who's going to vote for Ninja Spirit, I may change my vote later on if it will affect the poll in my favor.  Thanks!