Brain Test 5 Level 121

Hard1m 30s

Brain Test 5 Level 121 - Walkthrough & Answer

Level 121 is a three-part level: drag five food pellets into the green fish on the feeding page, drag the green beach umbrella over the girl in the pink dress on the ice-cream page, then on the number page scratch the 3, 6, 2, and trailing 4 out of 5436254 and drop the yellow pentagon into the bar that covers the last 5. The fish page ignores the snake and sea urchin, the ice-cream page ignores the white cloud, and the number page uses the polygon whose side count matches the digit the bar is covering.

Brain Test 5 Level 121 preview

Preview

Level 121

Board image

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Quick tactics for this level

Tip 01

On the fish page, only the small brown food pellets advance the counter. The thin green snake and the purple sea urchin are decoys and are not touched.

Tip 02

On the ice-cream page, only the green beach umbrella is the real shade. The white cloud in the upper-left is drawn to look moveable but does nothing.

Tip 03

On the number page, count the sides of each shape first. The red square is 4, the yellow pentagon is 5, the purple triangle is 3, the cyan hexagon is 6, and the short black line is 2, and the yellow pentagon is the only shape that matches the missing digit under the black bar.

Step-by-step solution

01

On "Feed the fish enough.", tap each small brown food pellet and drag it over to the mouth of the green fish on the left. The counter at the top ticks up 0/5, 1/5, 2/5, 3/5, 4/5, and 5/5 as the fish eats. The green snake and the purple sea urchin are decoys and are not used.

02

On "Protect her ice cream!", drag the tall green beach umbrella from the right side of the page over to the girl in the pink dress so the canopy covers her and her ice cream. The white cloud in the upper-left is a decoy and is not moved.

03

On the number page, the seven-digit number 5436254 is shown with five shapes below it: a red square, a yellow pentagon, a purple triangle, a cyan hexagon, and a short black diagonal line.

04

Tap the 3, the 6, the 2, and the trailing 4 inside 5436254 to scratch them out one at a time. The number shortens to 5 4 5 with a black bar covering the last 5.

05

Drag the yellow pentagon, which has 5 sides and matches the missing 5, up into the black bar on the right of the number line. The green check appears once the pentagon is seated in the bar.

Common mistakes

Mistake 01

Feeding the green fish by tapping the snake or the sea urchin on Part 1. The counter only advances when small brown food pellets are dragged to the fish, and the snake and sea urchin are decoys.

Mistake 02

Dragging the wrong shape into the black bar on Part 3. The bar is covering a 5, so only the yellow pentagon with 5 sides fits, and the red square, purple triangle, cyan hexagon, and black line all leave a mismatch and the page fails.

Board notes

Layout

Part 1 ("Feed the fish enough.") shows a white lined notebook page with a "0/5" counter under the title, a green fish on the left side, a thin green snake in the grass above the fish, a purple sea urchin on a short stalk below the fish, and a few small brown food pellets scattered around the fish. Part 2 ("Protect her ice cream!") shows a fresh page with a small white cloud in the upper-left, a girl in a pink dress holding a pink ice cream cone on the grass at the lower-left, and a tall green beach umbrella on a black pole to the right of the girl. Part 3 shows the 7-digit number 5436254 centered on a white page, with five shapes laid out below in two rows: a red square, a yellow pentagon, and a purple triangle in the upper row, and a cyan hexagon and a short black diagonal line in the lower row.

Goal

Clear three sequential prompts: the food counter on the green fish must reach 5/5 on Part 1, the green beach umbrella must cover the girl and her ice cream on Part 2, and the number 5436254 must be reduced to its last digit with the matching polygon dropped into the gap on Part 3. The run only clears once every page shows its own success state, the green check on the fish, the girl safe under the umbrella, and the yellow pentagon slotted into the number line, not when any single part is mid-action.

Opening

On Part 1, tap each small brown food pellet and drag it over to the mouth of the green fish on the left, until the counter at the top ticks up from 0/5 to 1/5, 2/5, 3/5, 4/5, and 5/5. The snake in the grass and the purple sea urchin are drawn on the page but are not touched. On Part 2, drag the tall green beach umbrella from the right side of the page leftward and drop it directly over the girl in the pink dress so the umbrella canopy covers her and her ice cream. On Part 3, tap the 3, the 6, the 2, and the trailing 4 inside 5436254 to scratch them out one at a time, leaving 5 4 5 on the page with a black bar covering the last 5, then drag the yellow pentagon, which has 5 sides, up into the black bar to fill the gap and clear the page.

Danger Zone

On Part 1 the purple sea urchin and the green snake look like obvious targets because they sit in the same column as the fish, but touching them does not feed the fish and they are decoys. On Part 2 the white cloud in the upper-left corner of the page looks like it could be moved to provide shade, but it is a static decoy and only the green beach umbrella gives the girl real cover. On Part 3 the wrong shape is the cleanest trap, and dragging the red square, the purple triangle, the cyan hexagon, or the black line into the bar all leaves a mismatch between the visible digits and the dropped shape, and the page fails with a red X until the yellow pentagon, which has 5 sides, is the one that goes into the slot that corresponds to the missing 5.

Mechanics

Level 121 is a three-act sequence that escalates from a counter-based prop-drag page (feed the fish 5 pellets while ignoring the snake and sea urchin), to a reposition-the-shade page (drag the umbrella, not the cloud, over the girl), to a number-and-shape puzzle where each digit in 5436254 maps to a polygon by its side count: 4 sides to the red square, 5 sides to the yellow pentagon, 3 sides to the purple triangle, 6 sides to the cyan hexagon, and 2 endpoints to the short black line, and the player has to scratch the non-matching digits and drop the matching polygon into the bar. The notebook page-turn between each prompt is the cue that the puzzle type has changed from counter-feeding, to prop repositioning, to digit-shape matching.

Level 121 FAQ

How do I feed the green fish in Brain Test 5 Level 121?

On the "Feed the fish enough." page, tap each small brown food pellet and drag it over to the mouth of the green fish on the left. The counter at the top ticks up 0/5, 1/5, 2/5, 3/5, 4/5, and 5/5 as the fish eats each pellet. The thin green snake and the purple sea urchin are decoys and are not used.

Which shape do I drag into the bar on the number page in Brain Test 5 Level 121?

The bar on the number page is covering the last 5 of 5 4 5 after the 3, 6, 2, and trailing 4 are scratched out of 5436254, so drag the yellow pentagon, which has 5 sides, up into the bar. The red square, purple triangle, cyan hexagon, and black line all leave a mismatch and the page fails.