The final product would be along the lines of the popular iOS game Jetpack Joyride, with some fundamental differences to be discussed later. The difficulty of implementation should, however, be about the same. Think of a sidescrolling platformer with obstacles and power-ups.
Ideally the developer should be able to provide temporary placeholder graphics as well, until a separate graphics contractor can be hired - unless of course the developer is able to animate as well.
Skills: android-development, graphics