Ultra Grenade

The Ultra Grenade is a new grenade that is unlocked after completing tier 3 of the grenade Fest or spending Store credits (actual money) to get five Ultra grenades.

Advantages/Strategy
Ultra Grenades are just like super grenades but their slightly stronger being able to kill players in a single hit depending on how much armor their equipped with either around 15% or 30%.

Disadvantages
One time only and if the player has a bad spending habit then suspect the tax collector to come within weeks.