Deep Ocean Ruins: Bubble Plant and Hypno Door

The shark is on you, the door is still shut, and every bad swim dumps you right back at the start. This room goes much better when you slow down and set it up first. Lana can dive in Planet of Lana II: Children of the Leaf, but Mui still avoids the water, so grab the bubble plant before anything else. It lets Lana carry Mui underwater inside a bubble.

Annotated underwater ruins puzzle screen showing the bubble plant, tunnel intersection for the ink cloud, shark patrol area, and the route to the hypno door. — Use a top-down room shot or annotated map here so players can instantly clock the real solve: bubble plant pickup, ink drop at the tunnel intersection, then the covered swim to the hypno door.

The real answer is the ink fish. Have Mui hypnotize the small fish, guide it through the tight tunnels, and drop an ink cloud to hide Lana from the underwater danger. The key spot, straight from the developers' own puzzle breakdown, is the tunnel intersection. Put the ink there, then move Lana through that covered crossing with Mui safe in the bubble. After that, bring Mui to the underwater hypno door and open the way.

Close-up of Lana underwater near a tunnel intersection while an ink fish creates a dark ink cloud that hides her from the shark, with Mui protected in a bubble. — A tight screenshot of the ink cloud covering the crossing turns the whole room from panic soup into a readable stealth setup. This is the make-or-break visual cue.

Tip: If the shark keeps tagging you, stop running the same doomed line like it is suddenly going to become a master plan. Back off. Get air. Check whether the ink is actually covering the crossing you need. Once that intersection is covered, the whole room stops acting like a sea monster ambush and starts behaving like the tidy little stealth puzzle it really is.

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