Age of Zombies does run on my new Droid Bionic, so here's a proper review
AoZ is a dual-stick shooter, where you play this parody of a macho guy who chases down this evil doc sending Zombies through time to take over the various ages, and while kill a ton of zombies using a variety of weapons.
There are a ton of weapons... pistol is your default and infinite ammo albeit slow firing. You can run into powerups such as machine gun, SMG, rocket, turret, grenades, shotgun, and so on. You can move in one direction and shoot in a different direction, required for your survival. Zombies spawn all over the place and they chase after you. Don't get overwhelmed. You get to fight a boss about every 3 levels who has a couple special attacks.
There's some cute cutscenes with even cheesier dialog, but then, you don't take games like this seriously, right? Graphics are downright primitive, almost 8-bit like which is part of the charm.
Give it a try, it's a pretty good frantic shooter.