Players had the option to upgrade to the full game through their Battle.net accounts.
Mothers should be urged to upgrade skills through the family support system.
Weapons can be upgraded through an upgrade system (see below).
The game's health system, Nanotech, can also be upgraded through experience.
The precinct was upgraded in the 1990s through a unique community arts project.
The school has continued upgrading itself through the years.
The player can also slowly upgrade his individual units with persistent rewards through the course of the game.
The Academy's programs served as an education resource to upgrade coaching through instruction, research and service.
It includes weapons which can be upgraded through 11 power levels, with a supercharged 12th level.
There are five selectable characters, and players upgrade each through experience points earned.