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The Spirits in Yoshi Topsy-Turvy each wanted a special objective cleared before they let Yoshi pass.
Spirit of Cuteness
The Spirit of Cuteness looked like a balloon with wings. She cared about the Egglings and wanted Yoshi to save them.
Spirit of Greed
The Spirit of Greed looked like a golden mouse who had a pocket full of money. To pass him, Yoshi had to collect coins in the level. He had a golden shadow.
Spirit of Power
Also known as the Spirit of Strength, the Spirit of Power is the strongest of the spirits. He resembles a purple boxer. To clear his levels, the player must defeat a preset number of enemies, almost the exact opposite of the Spirit of Happiness.