http://www.newgrounds.com/portal/view/644202
Mind you it's just a mini game but it's also the story sequel to Lab of the Dead, continuing the Allen C. Tyler storyline. He's going somewhere and needs some rifle practice!
Don't think you're gonna play a Road of the Dead sized game alright? it's a mini game, a mobile game.
Enjoy it and let us know what you think! Cheers!
You can get it on mobile too
iOS: http://bit.ly/1pLSl54
Android: http://bit.ly/1oFKPd0