Zombie Shooter is a free Android game developed by LEVEL UP GAME. The game is categorized under action games and offers a unique twist with the introduction of rainbow soldiers. The game's objective is to build up your base, upgrade your soldiers, and fight off waves of zombies.

The game's mechanics are simple but engaging. You start by recruiting soldiers, who come in different colors and have unique skills. As you progress through the game, you can upgrade your base to accommodate more soldiers and increase their strength. The game also offers a multiplayer mode, where you can team up with other players and fight together.

The graphics are colorful and appealing, with a cartoonish style that matches the game's theme. The sound effects and music are well-suited to the game and add to the overall experience.

Overall, Zombie Shooter is an enjoyable game that offers a unique twist to the action game genre. It is easy to pick up and play, and the multiplayer mode adds to the replayability factor. If you're looking for a fun and engaging game to pass the time, Zombie Shooter is definitely worth a try.