Part 20

Shortly after, jump off the mine cart to land in a blast barrel at the bottom of the screen, leading to a bonus area.

After exiting the bonus area, perform a full jump off the first tiki buzz to get a puzzle piece.

After the first climbable ceiling section, take the top path and follow the banana trail to get the 'O'.

In the area with the train and climbable ceiling, hang on and drop off before the train reaches the end of its track.

Checkpoint.

Ground-pound in front of the plant just left of the checkpoint for a puzzle piece.

In the next section, after the mine cart explodes, drop down between the tiki buzzes to get the 'N' and land safely on the next mine cart.

Right after the 'N', wait until the last moment to jump to the next mine cart to get a puzzle piece.

After the moving ceiling explodes, jump on the tiki buzz, then into the blast barrel. Follow the track through the background to reach the 'G'. A blast barrel will launch you back into the foreground.

Walk through the door to the left for a room with many bananas. Head right for mine carting.

Follow the bananas over the gap to get the 'K'.

The sign with the down arrow indicates you should duck to avoid crystals. Tap jump for a short hop on the mine cart.

Jump off a mole miner to reach the upper track and stay there for a puzzle piece.

In the next area, duck under the lowest set of crystals. The 'O' is right after this set; a well-timed jump should get it.

Do a short hop over the next gap to land on a lower track with a puzzle piece. Hop back to the top track.

A mole miner will throw bombs, breaking the track. Stay alert and jump as needed.

Three crystals will fall, creating gaps. Fall into the third gap to land on a lower track with a puzzle piece. Jump back to the upper track.

Checkpoint.

Crouch under crystals. If you stay standing for a banana trail, you can get a puzzle piece at the end, but immediately duck afterward.

Do short hops off the first two of five mole miners, then a full jump off the third to get the 'N'.

Combine short hops and full jumps during the bombing run. At the end, jump over the gap in the looping track.

Jump over the gap on the first revolution to get the 'G'.

At the end of the level, run past the exit barrel and through a door on the right to a bonus area.

This is a rocket barrel level.

At the beginning, follow the banana trail to get the 'K'.

Collecting all bananas in the trail will reveal a puzzle piece.

Avoid mole miners and their projectiles. Hit moles on balloons with the rocket, but dodge pickaxes.

The 'O' is in a gap between two large rocks in the middle of the screen, after mole miners start dropping crystals.

Checkpoint.

Follow the next banana trail for a puzzle piece.

Popping all mole miners' balloons here will reveal a puzzle piece ahead.

The 'N' appears in a gap at the bottom of the screen shortly after; veer downward to grab it.

After the section with the drill through a tunnel, the 'G' appears in a gap at the top of the screen between two crystals.

At the end of the stage, walk past the exit barrel and ground-pound in front of the plant near the right wall for a puzzle piece.

Walk left to enter a bonus area.

After the bonus area, there is another...