Stage 3-1

Begin Stage 3-1. You can obtain the Fighter ability, but it is ineffective underwater. Instead, head right to find a Parasol Waddle Dee on a ship and acquire the Parasol ability for easier underwater combat.

Proceed through the area, breaking the bomb block at the bottom right to advance.

When you encounter the second Construcraken (a giant octopus enemy), jump onto the small pier to find Sticker #1.

Return to the water and swim to the bottom right corner to find an open submarine. Enter it to access a secret room.

Inside the secret room, you will find the second Smash Bros. ability and Sticker #2 hidden behind the left blocks.

Exit the secret room and enter the door above.

In the next room, you can choose between the Poison and Sword abilities, and pick up an item from Bandanna Waddle Dee.

Head right to fight the mini-boss, Blocky.

Rock'n'Roll: Blocky rolls across the screen 1-3 times. Jump or float above.

Hop Slam: Blocky hops a couple of times then jumps and slams down, creating rocks at his sides that can be swallowed for the Stone ability. Run away and under him if needed.

Jump Slam: Blocky jumps 1-3 times then slams down on the final jump, creating rocks at his sides that can be swallowed for the Stone ability. Run away and under him on the large jump if needed.

Forward Dash: Blocky charges across the screen. Jump or float above.

Invincible Guard: Blocky shines and turns invisible briefly.

You can swallow Blocky to obtain the Stone ability.

Jump into the cannon to be transported to the next room.

Head down the slopes and stop at the third one. Float right to find food, then head down the ramp to find a bomb block. Break it to reveal Code Cube #1.

Drop down and enter the submarine at the bottom to proceed to the next room.

Hop up and break the bomb block to the left to reveal a Robobot armor. Jump inside.

Take the Robobot armor right and scan a Flamer enemy to activate Fire Mode.

Break a nearby large gray block to find a giant cannon. Carry it right to a dock and leave it there.

Backtrack to the fuse sticking out of the ground, light it, and quickly run to the cannon and jump inside.

You will be shot up through a gray block in the ceiling, collecting a 1-Up.

Continue right, reveal a 3D Warpstar from behind a bomb block, then head into the background.

Drop down, grab the cannon from the right spot, and place it in the left one.

Light the fuse and jump in to be shot up to Code Cube #2.

Enter the door nearby.

Continue right, defeating any Construcrakens.

Between the first two Construcrakens, there is a box containing Sticker #3.

Keep going right until you see gray blocks. Break them with the Robobot armor, then dock it in the newly revealed dock.

Go down into the water and take any of the pipes into the background.

Swim left a bit to find Code Cube #3.

Immediately swim up and out of the water, then jump over the metal crates to the left.

Among the stacked crates, there is one wooden crate hiding the Rare Sticker for this level.

Exit the stage by making your way back to the foreground and going all the way right to find the Stage Exit.