Let's go to the left first. We end up where we started. The right path leads to an area with a Piranha Plant and more Snifits. The signs are blank, so pick a sticker you don't want on the sign of the correct path. You can peel them off. The left path leads to an area with three paths. Go to the right for three more paths. The middle path will take you to a large area with five paths. Go to the left. The sign says, "
The path leads to the comet piece. The path to 3-3 opens up. That was short. Something tells me there's more here. The other paths lead to the entrance, so maybe other areas lead to 3-2.
When we return to go after a Wiggler segment after completing 3-10, we find a Toad. He confirms the segment was here. Going through the path correctly reveals nothing. At the entrance, the sign now says "Be careful not to become that guy who got baffled 10 times". Let's try the wrong path 10 times. I read the sign after trying the wrong path a few times, and it's only keeping score of how many times we choose the wrong path. Collecting the comet piece doesn't work, nor does defeating all the enemies, nor going through the maze backwards. Collecting all the stickers in the area doesn't work, either. After a while of searching, I find another path. Take the right path from the area with the pool of poison. It leads to an area with a few stickers and a door drawn on the side of the hill. The Secret Door leads to the Violin. Go to the right again and you'll find the segment in an area with lots of stickers.
Once again, the segment is spoiling for a fight. Kersti wonders why the segments never learn. It's battling alongside two Piranha Plants. After the battle, it joins us. Hop over the fence and continue forward. The next area has two Piranha Plants. The area after has lots of poisoned shrubs. The next area has a Bowling Ball. I know what to do with this. We backtrack to the comet piece, then head to Wiggler's house.
To summarize, to reach the segment, take the following path: Right, Left, Right, Right, Right.
If you return to where the Bowling Ball was after the poison clears, you'll find the Trophy.