We are developing games for past 5 years and have proficiency in Unity 3D.
We have created many Mobile Phone Games in Unity 3D of different genres like Shoot 'em up style, Racing, Casual, 3D Endless Runner, 2D Platformer etc.
As we have already created the type of game you mentioned i.e. 2D Endless Runner/Platformer.
So, we will easily able to complete the project.
Please, contact us to discuss further details.
Thank You
Sourav Gupta
Nashik,India