This is a glu game so it's possible to hack with just CIH.
If you want glu credits use the way too many hacks we got for them.
Other than that if you want the little stars. (Other currency for the game)
1) Input number of current stars.
2) Buy something.
3) Input new stars.
4) Repeat until you get a 4 byte and edit it.
For exp it's just like dead trigger.
You can use a low level analysis or go to your profile and check your current experience.
Go play a MP or a SP game and input new values same as above.