Brain Puzzle 3 Level 13

Overview

Level 13 says "Help men open all locks." A bearded suitor stands outside a pink bedroom holding a whole watermelon and a jug of cooking oil, calling "Sister Hong, open up!" Inside, a woman's silhouette sits behind a canopy bed. The sliding door in front of him is locked with a keyhole, and the room is full of odd props: a knife on the pink vanity, a green book on a stool, a green paint bucket, and a tree with a beehive and a hovering bee. The door is not one lock but a series of locks that must each be bypassed.

• Difficulty: Regular
• Estimated moves: 4

Step-by-Step Solution

1. Read the first lock. The man is clutching a whole watermelon, and the hint "This watermelon is for Sister Hong" tells you the melon is a gift, not a weapon. Tap the knife on the vanity to cut the watermelon open, then offer the sliced melon to Sister Hong as a peace offering.

1. Deal with the frozen lock. In the next stage the door face turns icy and frosted. Use the jug of cooking oil the man is carrying to de-ice and unjam the frozen lock mechanism so it turns freely.

1. Face the kiss-scan screen. The next lock is a digital panel on the door showing a glowing lips/kiss icon. The man turns heart-eyed and pouts; blow a kiss toward the lips scanner to pass the biometric check.

1. Clear any remaining obstruction. The paint bucket and beehive props are cleared out of the way as the locks disengage.

1. Open the door. Once the gift lock, the de-iced lock, and the kiss-scan lock are all cleared, the sliding door draws open and the red "Completed" ribbon appears.

Strategy & Reasoning

The title "open all locks" is literal: the door presents a sequence of different locks rather than a single keyhole, and each requires a different tool already on screen. The game signals this by the door changing appearance between frames — plain locked in the first frame, then coated in frost, then showing a digital kiss-scan panel. The man's carried items map onto those locks: the watermelon is the social gift, the oil jug is for the frozen mechanism, and the kiss-scan is a biometric the lovesick man satisfies by pouting.

This is a gag level about a suitor comically trying every trick to get into a woman's room. The bee, the book, and the paint bucket are dressing; the real chain is cut the fruit, grease the ice, pass the lip scan. Because the exact mapping of each prop to each lock is inferred from the changing door visuals rather than narrated, the steps rest on those visible transitions.

Tips & Common Mistakes

• Mistake: trying to force the door or hit it. The locks are mechanical/biometric, not strength-based. Use the props: cut the melon, oil the ice, blow the kiss.
• Mistake: treating the watermelon as something to eat. The hint says the melon is for Sister Hong — it is a gift to be cut and offered, not a snack for the man.
• Mistake: ignoring the kiss-scan panel. The glowing lips on the door are the final lock; the man's heart-eyes and pout are the cue to blow a kiss at the screen, not just to stare at it.