overkill is where you hit something and you do WAY more damage than its max health you get more drops, better gem chance, even possibly more than one gem. A higher level overkill is better as it upgrades the buffs-doubling, tripling, quadrupling, well you get the idea. You can also improve overkill by buying the overkill improvements in the shop (well what else did you think was going to happen?). Basically, overkill=mo stuff and mo stuff= better pick and better pick=more overkill and the circle continues...
@JosaricHawk It boosts the defense and health, but also the drop and exp, and the last 2 are boosted far more than the rocks durability, so if you do it, you get more gems and stuff i guess.
To complete the special mission MOAB Madness, get to the point where you ulock the ground zero ability on the plane, then make two of those. Once you have done this, just wait until they are close to the end, use the first ability, wait for the rest to appear, then fiish those off with the other. Like if this worked for you!
I got Compassion: Rank A after shooting somebody that I didn't know was alive or dead, walking away from a person who was getting killed, stealing a person's ammo and gun and leaving my friends behind. I don't think this is right.
A clue reveals that the murderer is Left-Handed. Wait, all my suspects are left handed... Well that helps. Great game, love the fact that the clues could either solve it quickly, or not help at all. 5/5.