1. Entering the map of Limbo, if you want to get the hidden Gumball, Son of Satan, you must first leave a tombstone on the map.
2. Leave the tombstone above the 70th floor, exchange it for the second option prop in Lost Paradise, and get the Devil's Gift Box. After opening the Devil's Gift Box, you can get 3 props, the Heart of Satan. Be sure to keep it and not use it.
3. Open the second game, collect 50 crystals of various types to exchange for the Demon Gift Box, and come to the place where the tombstone was left. At this time, the tombstone can be activated with Paradise Lost.
4. The tombstone will open the devil's door that pops up. After opening it, the Son of Satan will appear hiding Gumball. Feed it the Satan's Heart obtained by opening the devil's gift box below.
