Take command of Northern Guard; a joint military and civilian team of elite superheroes charged with protecting the country from an insidious invasion by super-powered villains Northern Guard: Assault is a Tower Defense and Real Time Strategy game hybrid that uses super powered mobile units instead of the traditional stationary turrets, which leads to a new evolution in the Tower Defense genre. NG:A will be released on the iOS, and Android platforms.
This is the stat page\upgrade menu. Each heroes' powers can be upgraded up to five times. You can also upgrade subsets of the stats (not shown).