well here it is...
1. go to trial forest (1 star lvl will do)
2. make a back attack from monster.
3. after that scan it to 1
4. back attack again
5. scan 2
6. back attack again (hihihih)
7. scan 3
8. back attack
9. scan 4
then add the remaining add and freeze it to 1000.
then u have the perfect star hack..
thank me if i help.