How do I help Gymmy beat the Rockhead in Level 154?

Rub the exposed armpit under the Rockhead's raised arm until he drops the weight.

Do the bananas or baby items matter?

No. They are decoys and do not affect the lifting challenge.

The Rockhead has an empty hand, his dumbbell lies by the kettlebell, and Gymmy is still lifting.

Brain Test 4 level guide

easy 7 colors

Rub the exposed armpit beneath the Rockhead's raised arm so the ticklish opponent drops his dumbbell and Gymmy wins.

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Place your finger on the exposed armpit beneath the Rockhead's raised arm.
Press and rub back and forth across the underside of his upper arm.
Continue until the tickle reaction makes his dumbbell fall above the blue kettlebell.
Wait for Gymmy to smile and for the green completion check to appear.

Colors in this level:

Black, Gray, Blue, Green, Yellow, Brown, White

Board notes 5 details

Layout: Gymmy curls a loaded dumbbell on the left while the smiling Rockhead holds another on the right; a loose dumbbell, green pacifier, blue kettlebell, baby bottle, and bananas cover the floor.
Goal: Tickle the Rockhead until he releases his dumbbell while Gymmy keeps lifting.
Opening: Place your finger on the bare underside of the Rockhead's raised arm.
Danger Zone: The loose weights, kettlebell, bottle, pacifier, and bananas are decoys; do not add them to Gymmy or feed either contestant.
Mechanics: Rubbing the opponent's exposed armpit triggers a tickle reaction that makes him drop the weight automatically.

How do I help Gymmy beat the Rockhead in Level 154?
Rub the exposed armpit under the Rockhead's raised arm until he drops the weight.
Do the bananas or baby items matter?
No. They are decoys and do not affect the lifting challenge.
What is the successful final scene?
The Rockhead has an empty hand, his dumbbell lies by the kettlebell, and Gymmy is still lifting.