A Surprise Ball is an object which only appears in Yoshi's Story. They are round red spheres with a white exclamation mark painted on each of them. Surprise Balls are found in midair, and a Yoshi can extend its tongue out at one to launch up onto the Surprise Ball and use it as a small platform.
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| Characters | Protagonists | Yoshi • Yoshis |
| Antagonists | Baby Bowser | |
| Supporting characters | Balloon Bully • Dragon • Ghost Rider • Huffin' Puffin • Miss Warp • Neuron • Poochy • Power Bee • Snake | |
| Levels | P. 1-Beginning | Treasure Hunt • Surprise!! • Rail Lift • Tower Climb |
| P. 2-Cavern | Bone Dragon Pit • Blargg's Boiler • Jelly Pipe • Torrential Maze | |
| P. 3-Summit | Cloud Cruising • The Tall Tower • Poochy & Nippy • Frustration | |
| P. 4-Jungle | Jungle Hut • Jungle Puddle • Piranha Grove • Neuron Jungle | |
| P. 5-Ocean | Lots O'Jelly Fish • Lots O'Fish • Shy Guy Limbo • Shy Guy's Ship | |
| P. 6-Finale | Mecha Castle • Lift Castle • Ghost Castle • Magma Castle | |
| Other | Practice (training level) | |
| Bosses | Bosses | Cloud N. Candy • Inviso • Cloudjin • Don Bongo • Baby Bowser • Ghost |
| Mini-bosses | Bone Dragon • Slug | |
| Enemies and objects | Enemies | Air Bag • Attacky Sack • Bamboo dancer • Bee • Big & Little Boo • Black Shy Guy • Blargg • Blindfold Boo • Blue Blurp • Bob-omb • Bone Dragon • Boo • Boo Block • Bullet Bill • Bumblebee • Bumpty • Burner Shy Guy • Centipede • Cheep Cheep • Chomp • Clam • ComBat • Do-Drop • Flying Shy Guy (propeller) • Frog • Fuzzy Wiggler • Gabon • Goonie • Ick Worm • Jellyfish • Jelly Ghost • Lakitu • Lava Ghost • Little Boo • Mr. Eel • Nipper Plant • Nipper Spore • Pak E. Derm • Peeper • Piranha Plant • Piranha Pest • Piranha Sprout • Puffer • Raven • Red Blurp • Sea Anemone • Sea cactus • Sensuikan Heihō • Shy Guy • Shy Guy Galleon • Shy Guy on Stilts • Shy Guy on Pogo Sticks • Snorkel Snake • Snow Guy • Spider • Spike • Spiked Fun Guy • Spiny Fish • Tehee Butterfly • Toady • Vine Slime |
| Objects | Bocci Ball • Bumper Ball • Burner • Direction Switch • Grinder • Jelly • Piston • Rail Lift • Spike • Spiked stone • Sword | |
| Items | Items | ? Bubble • Bumber 'Chute • Delay Switch • Heart Coin • Message Block • Mystery Crate • Power Flower • Special Heart • Super Happy Tree • Surprise Ball • Tulip • Warp Vase • Yoshi's egg |
| Fruits | Apple • Banana • Bomb Berry • Favorite Fruit • Grapes • Heart Fruit • Lucky Fruit • Melon • Pepper • Watermelon | |
| Miscellaneous | Moves | Crouch • Egg Throw • Flutter Jump • Ground Pound • Jump • Sniff • Swallow |
| Terminology | ♥ • Arrow Sign • Fruit Frame | |
| Other | Gallery | |