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Kingdom 10 of 17

Super Mario Odyssey: Seaside Kingdom walkthrough

A beach resort where Mollusque-Lanceur is draining the fountain.

  • About 12 min in the videos
  • 1 part · 2 steps
  • 1 boss

Compiled from 2 playthrough videos and 8 guides · checked Oct 19, 2026

0 of 1 done
Video: ProsafiaGaming on YouTube. Loads from youtube-nocookie.com only when you press play.

What each player can do here

P1 · Mario
  • Mario: all the running, jumping and captures. There are no lives; when Mario is defeated he drops 10 coins and goes back into the level.
P2 · Cappy
  • Cappy: flies freely but only within a set range of Mario, jumps and ground-pounds on its own, clears hazards off the ground, and can give Mario about a second of float once per jump.
  • Until Player 2 presses a button, Cappy simply hovers above Mario's head, and it keeps moving even while Mario is inside a capture.
  • Start two-player from the + menu under Two Players; pressing left on the directional buttons swaps who plays Mario.one guide

If your skill levels differ: The newer player takes Cappy: it cannot get lost, because it stays within range of Mario and simply rides on his head until moved. The Cappy player's clearest way to help is the float boost, once per jump. How to split the roles

The beach

Part 1 of 1. Earn enough Moons to leave and beat Mollusque-Lanceur.

  1. BothThe Odyssey needs 10 Power Moons from the Seaside Kingdom before it can fly on.
  2. BothUncork all four Sparkle Water fountains around the kingdom; that drives Mollusque-Lanceur off the Glass Tower.

Boss

Mollusque-LanceurThe giant squid

  1. Gushen: Capture a Gushen, jet up over him, and spray down onto his lava-covered head until it is clean; then hop out and stomp him.
Sources (10)

Steps compiled from 2 playthrough videos and 8 text guides, checked Oct 19, 2026, and written in our own words. We did not play the game for this guide. A step marked “single source” rests on one guide so far.