Ah, this bug. I'm pretty sure it happens when you hit the ball with the edge of the paddle, into the border. If you think it happens any differently, please send me a message, this bug had been in the game since V0.1 and I'm really wanting to fix it.
To easily get gold, just try to get as much summon and raid infamy and goblin HP, keep replaying the tutorial town and use only goblins. This way you get around 1000 without having to pay attention depending on how much you have upgraded.
To find the treasures upgrade the cleanser warlocks health, upgrade the Kongregate one for 0 infamy and get 2000 infamy, the 2nd treasure is found when you upgrade the element's MP regen.
To enter cheat codes, start a new game and enter the cheat code as your name:
DEAD MAN WALKING : Invincibility
CHE GUEVARA : All weapons
POLICEMAN : Camouflage and freedom to go over the border
CHOSEN ONE : All weapons, infinite tequila time
BILL GATES : Money
PUPPETS MASTER : Huggy dolly mode
Keep this comment alive by clicking the +!
 "Incursion"){kind=icon}
 "Pingy the Ping Idle RPG"){kind=icon}
 "Pinata Hunter"){kind=icon}
 "Point BREAK"){kind=icon}
 "Bullseye (Interstellar Marines)"){kind=icon}
 "Sticks Quest 2"){kind=icon}
 "Stick Kill 1.5"){kind=icon}
 "Villainous"){kind=icon}
 "DuckLife2: World Champion"){kind=icon}
 "Over The Border"){kind=icon}
 "Reincarnation: Out to Sea You Die"){kind=icon}
 "Raze"){kind=icon}
 "Bug War"){kind=icon}
 "2D Epic RPG"){kind=icon}
 "XTreme Shooter"){kind=icon}
 "Dark Tales RPG"){kind=icon}
 "The Company of Myslef"){kind=icon}
 "SpaceJunk"){kind=icon}
 "BeGone"){kind=icon}
Ah, this bug. I'm pretty sure it happens when you hit the ball with the edge of the paddle, into the border. If you think it happens any differently, please send me a message, this bug had been in the game since V0.1 and I'm really wanting to fix it.