Brain Test 3 Level 273
End the war between the red and blue slimes
They are in war because the mother slimes have lost their babies. Drag away the slimes to find the slime babies and give them to their mothers.

Follow the screen sequence
Use the images as a compact replay of the solving path. The text below each frame explains what should change.

Video walkthrough
Same number in other versions
Brain Test versions can reuse the same level number with a different puzzle. If the screenshot or question does not match your game, switch to the same number in another version or use the nearby level links.
Strategy guide
- 1.Drag the adult slimes apart to reveal the hidden baby slimes underneath them;
- 2.Look for visual clues like small shapes or outlines suggesting something is concealed behind the slimes;
- 3.Once babies are found, drag and drop each baby slime onto its matching colored mother to reunite them.
Common mistakes
- 1.Trying to combine or merge the red and blue slimes directly instead of looking for hidden elements;
- 2.Focusing only on the visible slimes and not considering that something might be hidden behind them;
- 3.Attempting to use unrelated objects or gestures instead of interacting with the slimes by dragging them.
Related levels

Joe is falling down from that cliff! Alyx must save him
Joe is falling down from that cliff! Alyx must save him

They must save Mary from the red slimes
They must save Mary from the red slimes

They must find a way to get across
They must find a way to get across

The Slime King confronts them
The Slime King confronts them

The Slime King told them to go through 2 doors towards the East
The Slime King told them to go through 2 doors towards the East

They reached to the 2nd gate. They must solve its puzzle
They reached to the 2nd gate. They must solve its puzzle

Alyx must fill the bottle with the Fountain of Life's water
Alyx must fill the bottle with the Fountain of Life's water

The cave is collapsing upon them! Find an exit
The cave is collapsing upon them! Find an exit