Brain Test 4 Level 520: Let's prank Uncle Bubba.
Brain Test 4 Level 520
Screenshots

Quick Answer
Drag the balloon next to the cups and pop it with the needle to knock them over. After Uncle Bubba drinks them and rushes to the bathroom, drag the table to block the door.
Skills Tested
Step-by-Step Solution
- 1) Move the balloon next to the cups.
- 2) Use the needle to pop the balloon.
- 3) The burst knocks the cups over so Uncle Bubba drinks them.
- 4) Once he rushes off, drag the table to block the door.
Hint
Reveal a hint
Pop the balloon to spill the cups, then block the bathroom door with the table.
Why It Works
This gag relies on a chain of events rather than a single tap. The popping balloon upsets the drink, sending Uncle Bubba running for the bathroom, and that is your moment to jam the door with the table. Timing and reading the scene are what make the trick work.
Frequently asked questions
How do I prank Uncle Bubba in Brain Test 4 Level 520?
Pop the balloon near the cups, then block the bathroom door with the table after he runs off.
What is the answer to Brain Test 4 Level 520?
Burst the balloon to spill the drinks, then place the table in front of the door to trap him.
What is the trick in Brain Test 4 Level 520?
The spilled drink sends him to the bathroom, giving you the chance to block the door with the table.
Why do I need the balloon in Brain Test 4 Level 520?
Popping the balloon topples the cups so Uncle Bubba drinks and leaves for the bathroom.
Is there a video walkthrough for Brain Test 4 Level 520?
Yes, the video shows popping the balloon and moving the table to block the door.
How do I avoid getting stuck in Brain Test 4 Level 520?
Wait until Uncle Bubba rushes to the bathroom before dragging the table over the doorway.