Pretty easy actually. Nut it was fun trying to deal with insanely nonsensical situations. I was also stuck with the fire element for awhile until I thought, "WOULD MAKES FIRE! XP"
I had the guitar with a money belt and playing as the third guy at level 11. I went from 70,000 to 200,000 as my best without buying anything between those two hits... WTF
Kill one of them, put the girl on the moon and the boy on a boat, put the boy on a bird until he leaves, do the same for the girl after rewinding, put both boy and girl on the moon, copy the shooting star until the sky has many shooting stars, put both boy and girl on a boat, give the far away moon to the boy. ALL 7 ENDINGS!
 "Flakboy 2"){kind=icon}
 "The Dreamerz"){kind=icon}
 "Klikwerk"){kind=icon}
 "Record Tripping"){kind=icon}
 "Frantic"){kind=icon}
 "Level Up!"){kind=icon}
 "Homerun In Berzerk Land: Berzerk Ball"){kind=icon}
 "Fly Hard"){kind=icon}
 "Epic Battle Fantasy 2"){kind=icon}
 "Time Kufc"){kind=icon}
 "Epic Battle Fantasy"){kind=icon}
 "Seven Deadly Sins"){kind=icon}
 "Hedgehog Launch 2"){kind=icon}
 "UPGRADE COMPLETE!"){kind=icon}
 "I wish I were the Moon"){kind=icon}
 "Friendly Fire: Blood and Gore"){kind=icon}
 "Sparks and Dust"){kind=icon}