Zombo Buster Rising
Zombo Buster Rising is a mindless 2D arcade game where you fend off waves of zombies that are storming your base. Killing zombies rewards you with cash that can be used for upgrades and you are eventually joined by two AI controlled partners. The game is very simple and instead of moving around, you only control the cross-hairs. There is some strategy involved when it comes to activating special abilities at the right time, but overall this is a game that can be completed quickly and easily. It usually sells for dirt cheap, though, so fans of the genre should definitely give it a shot.
Gameplay: Shoot zombies before they overrun your base while collecting coins to upgrade your weapon.
Graphics: 2D, very basic and featuring only one background, but at least there are plenty of zombie types.
Sound: Nothing memorable about the music or sound effects, but thankfully neither is annoying