their is a lot of places for birthday party,
Ele france in Ramada signal, i did my daughters birthday, its very nice, feedrucker near to tennis & squash, pizza express they let children make their own pizza, burger king.
for cake try Albateel or swesriya, they have nice cake, & you can choose the cake pictures, unfortunatly they don't have shape, only Ele france who have shapes, if you would like something special.