Retro Mobile Multiplayer Racing Game

I’m looking to have a straightforward but addictive car-racing game built for mobile devices. The core of the experience should feel like the arcade classics—bright pixel art, 2-D/2.5-D camera angles,... (Budget: $30 - $250 USD, Jobs: 2D Game Art, Android, Game Development, Game Programming, iPhone, Mobile App Development, Unity, Unity 3D)