Zoo Games haven’t revealed it yet, but they have a first person zombie shooting game for the Nintendo DS. After the ESRB leaked Zombiez Seeker we did some digging. First, this is what the rating board had to say about the unannounced title.
This is a first-person shooter in which players assume the role of a young couple attempting to fend off various evil creatures after their car breaks down. Players use pistols, shotguns, and machine guns to kill the cartoonlike enemies (e.g., zombies, skeletons, vampires, evil clowns) that attack with knives or balls of slime. Players must reload each weapon manually to continue shooting; enemies grunt or shriek when hit by the gunfire. The words "bastard" and "damn" appear in the dialogue.
While Zombiez Seeker has shotguns and evil clowns to shoot, this game can’t be that violent. Zombiez Seeker is one of the rare FPS games rated "T" for teens. Thailand-based 7 Raven Studios is developing the game and this is what it looks like.