iphone/android game

We are looking for a game developer who can construct a strategy/puzzle game. For iOS & Android. The game will function a lot like pac man and air traffic controller. The idea is for the user to reach checkpoints using the most efficient routes available. The character will be a delivery guy "Joey" who will pick up packages from one location on the map and drop it of at another location, this process will be controlled by the user. Obstacles will be placed in the path such as construction zones, traffic lights, police, etc. The game must be arcade style with a points system measuring the time taken for each delivery. Bid with your proposals and estimate cost