Unity 4 Player Party Game

I want to bring a couch-co-op party experience to phones and tablets: four friends sharing one screen, jumping straight into quick-fire mini-games such as tank duels, bumper-car clashes, endless runners and frantic tap races... (Budget: ₹1500 - ₹12500 INR, Jobs: 2D Game Art, Android, Game Design, Game Development, iOS Development, Mobile App Development, Unity, Unity 3D)