The penultimate level is filled with so much fruit, that by the time you collect them all, Yoshi will have a really long line of eggs behind him.
The final level is so anti-climatic it ends up being hilarious. No holes, no bees, no spikes, just a stationary fruit, a stationary present, and the stationary last door.
The humor can also come from the paranoia the layout gives. It looks way too easy, especially given how hard the rest of the game is.
Introducing: Dark Monita!
Some of Monita's descriptions of the prizes you receive from the coin minigame are hilarious.
Striped Conifer: One upon a time, a fair maiden awaited her sweetheart's return from battle. She pined and pined, and pined some more, until all that was left was a pine... Oh, it's a spruce. Never mind.
Apple: I have fond memories of my grandmother bringing me a basket full of these. Funny, I don't remember actually eating them...
Question Mark: This has always been a symbol of mystery. My processing on the matter only results in confusion. Who am I? What is happening? Why is butterscotch?
Battery: This is an ordinary torch battery, the kind that just pops into existence when you need it most. If only they didn't always appear so far away...