Google play games tricks [help]

I'm playing lots of games that gives high google play xp but now I need more games! :angel:
I've already completed
#xp booster(1,2,3,4)
#xp booster (official , official v2 , premium )
#eggs in a basket
#snake shadow edition
#ultra flow
#school driving 3d
etc. most common games :laugh:
but now i really need more games or xp increase trick :D
I'm already level 37 :cool:
Help please :crying: