Don't Knock Twice
28 Achievements
1,000
Xbox One
Xbox Series
Alley-Oop!
Dunk the basketball.
25
28.01%
How to unlock the Alley-Oop! achievement in Don't Knock Twice - Definitive Guide
MISSABLE
After you find the axe, make your way back to the game room and look to the left of the fireplace to find the basketball. Take the ball outside into the courtyard area and on the right side you will find the basketball hoop. Just throw the ball so it goes through the hoop and the trophy will pop.
The basketball is found in the snooker room, near the fireplace in the left hand corner. Pick it up and take it outside, stand underneath the net and throw the ball in. You will have to have the axe first to open some doors to clear a path.