We all know the scenario… last enemy character has 23 health, you use fireball to kill him (2300 damage) or whatever other powerful special, and it starts cascading tiles, matching over and over, critical tiles popping up, but it says victory.
Add something where all the damage you do after the last ememy is dead accumulates, and if you can reach 3500 damage, you get bonus iso or something.
Overkill counter!!
Thats all.