Pikmin Needed: Red, Yellow, Blue, White, Purple (recommended)
Sublevel 1: Use yellow pikmin to disable electricity traps. Beware of the wollywogs hopping around (take them down with your captains if you have trouble). Use your captains or blue pikmin on the blowhogs (that shoot water now). Take the treasure (Merciless Extractor) to the pod.
Sublevel 2: Disable poison traps with your white pikmin. Toss your pikmin onto the top of the jellyfish to eliminate them. Attack the small bulborbs carefully and in small groups. Sneak up on the sleeping bulborb and use your purple pikmin to slam the bulborb on its back. Recover the battery (Durable Energy Cell) and soap (Sud Generator).
Sublevel 3: Terminate jellyfish with quickly tossed pikmin onto its top. Kill the blue creatures (dumples) with captain as they are pretty adept at eating pikmin. Eliminate the crawfish as youve done previously. Lure it out of its hole with your captain then swarm it with pikmin when it tries to return. Recover the compact (Mirrored Stage), shell (Scrumptious Shell), and can top (Vorpal Platter). One could be underwater, which will require blue pikmin to recover.
Sublevel 4: Navigate the narrow drainage system. Use the candypop buds to create more yellow, blue, or red pikmin. If youre low on blue, create more as youll need them in the next sublevel. Mature your pikmin with nectar. Search one of the narrow drains for the leaf (Arboreal Frippery). Utilize your treasure gauge if you have trouble finding it.
Sublevel 5: Disable fire traps with red pikmin. Swarm the small bulborbs in singles if possible. Eliminate hovering blowhogs by tossing pikmin onto its back and swarming the beast when it drops. Use red pikmin or captains against the fiery blowhogs. Beware of the wollywog hopping around. Use captains or pikmin carefully; whistle them back before he drops from a hop. Create additional purple pikmin with the candypop bud if available. Recover the bottle cap (Pondering Emblem), sardines (Endless Repository), and pan (Broken Food Master). The pan might be underwater inside a drain. Toss your blue pikmin (at least 20) over the ledge into the drain and theyll recover the treasure.
Sublevel 6: Beware of the poisonous beetle that emerges from the ground. Whistle your pikmin close if they get poisoned. Navigate very carefully because there are bombs on this level. If you spot a bomb, retreat fast. Recover the rubber duck (Rubber Ugly), bottle cap (Abstract Masterpiece), and teeth (Behemoth Jaw). Continue down to the final floor.
Sublevel 7: Time to face off against the bloyster. This creature resembles the beast in the lake near the landing spot on Perplexing Pool. Its weak spot is the tail; the danger spot is its mouth! Since the creature has a way of always facing you (making it hard to attack the tail), its best to split up your captains. One captain serves as the attacker and the other serves as the distraction. One captain controls a group of pikmin while the other stands in front of the creature. The creature will turn to whichever captain you control. So switch to the captain without pikmin to turn the creature toward him and away from your other captain. That other captain with the pikmin can now attack the tail. Keep switching captains to force the creature to adjust positions. Recover the speaker (Amplified Amplifier) and conclude the cave.
Assemble a group of 100 blue pikmin and proceed through the passage to the right side of the river. This is where you retrieved the nut earlier. Theres another cave entrance here but its submerged in water so only blue pikmin can access its entrance.
Pikmin Needed: Blue
Sublevel 1: Eliminate the fiery blowhogs with your captain or pikmin--just be ready to whistle them close to put out the flame. Recover the pastry (Pastry Wheel) and return it to the pod. Avoid fire traps or if you need to destroy them, use your blue pikmin but whistle them back quickly if theyre set aflame. The flaming bulblax should be lured to water--to put out his fire--then attacked with blue pikmin as it walks away. Pick up the cookie the bulblax ingested (Bug Bait) and return it to the pod. Finally, recover the candy (Diet Doomer) before completing the level. Another danger to worry about on this level and others in the Submerged Castle is the appearance of the boss. You wont fight him until the final floor but hell make an appearance on other levels. Hes invincible until you reach the final floor so dont fight him. Hell roll around the level and squish any pikmin in his path. Stay away from him. Hide your pikmin in corners or alcoves. Keep a captain close and use the "C-stick" to move your pikmin close to the wall if the boss gets close.
Sublevel 2: Kill the large bulbmin with your captains. Whistle and youll gain control of the small bulbmin. These are like multi-purpose pikmin--theyre invulnerable to fire, electricity, poison, and water. Recover the donut (Chocolate Cushion), cookie (Comfort Cookie), and candy (Confection Hoop). Avoid the boss if he appears by sticking your pikmin in corners or alcoves and protect them with a captains orders.
Sublevel 3: Gain additional small bulbmin from their larger counterpart (by eliminating it) and use them to disable the electricity traps and to battle the beetles. Eliminate the hovering blowhog or avoid it. Watch out for the wollywog, which your captains can battle or use your pikmin carefully. Theres a white candypop bud here, which can be used to trade blue for white pikmin. You may need them to dig up a treasure. Return the cookie (Compelling Cookie), lid (Activity Arouser), and cushion (Succulent Mattress). Avoid the boss if he appears by sticking your pikmin in corners or alcoves and protect them with a captains orders.
Sublevel 4: Look out for the bomb dropping bug hovering around on its balloons. Defeat it by popping the balloons with pikmin. Be ready to retreat fast to avoid any dropped bombs. Disable poison traps with bulbmin or white pikmin. Recover the battery (Proton AA), ham (Drone Supplies), and candy (Pale Passion). Avoid the boss if he appears by sticking your pikmin in corners or alcoves and protect them with a captains orders.
Sublevel 5: Time to get some revenge on that rolling menace! Trade blue pikmin for purple pikmin using the candypop buds here. Use the eggs to mature them with nectar. Enter the chamber to face the water wraith. Dont go for the egg in the chambers center--thats a trap. Walk close to trigger the wraiths arrival. Move to its side and toss purple pikmin on its back. It will turn purple and become vulnerable. Continue to pound it with purple pikmin. If it escapes, get out of its way and attack from the side once again. Continue to toss purple pikmin on its back until the wraith gets thrown off its rollers. As it runs around the chamber, just hit it with purple pikmin to finish the pest off. Grab the megaphone (Professional Noisemaker) before exiting the level.
By now you should have recovered over 10,000 pokos to pay off the debt and complete the game. Watch the end cut scene, which reveals Olimars successful trip home. Except for one thing he left Louie behind. You can choose to continue the game to search for more treasure. Instead of Louie, the President goes with you. A new area opens up--Wistful Wind--and you still have tasks to complete in the Valley of Repose.