Operation: Onslaught

Description:

An intense overhead shooter featuring a robust 13-mission campaign, 4 unique minigames, and 9 solid weapons. Fight over 30 animated monsters, and take on 5 crazy bosses while competing over 6 leaderboards. Upgrade your weapons, buy ammo, armor and forcefields to survive and open more than 25 unlockables including 10 "hacks" to modify the game.

Instractions. Work your way through the campaign to unlock new levels and minigames.