Keep your momentum going in "Brain Test 4 Level 337: Open the door." with our complete walkthrough.
Switch Game Version
Question
Open the door.
Hint 1
Drag the key into the keyhole.
Hint 2
Drag the screen up to see the door blocker.
Images
Answer
Put the screen into the keyhole. Drag the screen down and tap on the door blocker.
Game Versions
Play Brain Test 4
