Shift+R treats the ball as if it fell down the hole. Originally it just sent it back to the launch retaining current score, but people were then using it to get very high scores by resetting if they were about to lose. It does not delete progress, upgrades, or high score, it just treats the ball as if it fell.
 "Lol Eater 2"){kind=icon}
 "Pincremental"){kind=icon}
 "Press The Button"){kind=icon}
 "UPGRADE COMPLETE!"){kind=icon}
 "Straw Hat Samurai: Duels"){kind=icon}
 "There is no game"){kind=icon}
 "Bob the button two!"){kind=icon}
 "A Quest for Idle"){kind=icon}
 "Transformice"){kind=icon}
 "Ultimate Five-Leaf Clover"){kind=icon}
 "Epileptic Headsmashing Game 2000+ Deluxe!"){kind=icon}
 "Idleplex"){kind=icon}
 "King Flamebeard"){kind=icon}
 "Elephant Quest"){kind=icon}
 "Supermuzhik 2"){kind=icon}
Shift+R treats the ball as if it fell down the hole. Originally it just sent it back to the launch retaining current score, but people were then using it to get very high scores by resetting if they were about to lose. It does not delete progress, upgrades, or high score, it just treats the ball as if it fell.