Secret 13 is a secret that's a white cube.
secret 13
Location[]
Get to the place in the Debug World where you find Card 40, and float down from the chest, then go down. From the save point, go right, down, down, left, left, left, left, left, down, right, right, right, right, down, right to reach the room with the chest.
Description[]
"It's white."
Trivia[]
- This is the last secret that can be obtained even though the menu allows selecting in the rest of the row.