Ninety-Nine Nights Tips

Ranking System
Rankings for N3 follow as such:

'S': You killed everyone, collected tons of orbs (both red and blue), used your orb sparks often, collected 'Battle Emblems', and more or less, mastered the stage. Congrats.

'A': You did well, but you could have done a little better. Kill more, collect more orbs, etc. You'll get that 'S' in time.

'B': You beat the stage, and killed a few people along the way. Now, gain a couple of levels and jump back in the deep end with both feet and kick some goblin/orc/dark elf arse!

'C': You beat the stage, and that's pretty much it. Go back through and participate in the bloodletting for goodness sake!

Hope this helps!