The Fish Bone (or Fishbone or Wet Bones) is an undead variation of a Cheep-Cheep, similar to the relationship between a Koopa Troopa and Dry Bones. They reveal that living Cheep-Cheeps actually have large teeth and a singular rib cage. One of their unique characteristics is their hollow, glowing yellow eye sockets that shine in the dark. They seem to be ruled by a skeletal shark known as Kingfin.

Appearance and Behavior

Unlike Cheep-Cheeps, Fish Bones will purposely go after the player and attack them. Once the player is within their view, their eyes turn red as a sign that they have locked onto you. They are immune to fireballs.


Super Mario World

Fish Bones make their debut in Super Mario World, in this game they swim in straight lines sharply in hopes of hitting Mario. They are commonly found in Vanilla Fortress and Bowser's Castle. The only other way for a Fish Bone to be destroyed is to be attacked with a spin attack from Cape Mario/Cape Luigi or a Starman.

Super Mario Galaxy

Although normal Fish Bones are absent in Super Mario Galaxy, a similar enemy called the Bonefin appears. They can be encountered in the Bonefin Galaxy during the battle with the colossal Kingfin.

Mario & Luigi: Bowser's Inside Story

In Mario & Luigi: Bowser's Inside Story, Fish Bones are briefly seen during Junker's boss fight where they are released from the Junker Cans upon defeat. They will circle the Mario bros. and must be knocked back with a Hammer. They can poison the Mario bros. if they're not careful.

New Super Mario Bros. Wii

A Fish Bone in New Super Mario Bros. Wii.

Fish Bones appear as enemies in New Super Mario Bros. Wii. They first appear in World 4-Castle appearing as enemies in the underwater sections of the level. This time, whenever they see Mario, their eyes glow, then they attack by charging at Mario (and then crumbling apart upon hitting the wall). Instead of homing in on him, the Fish Bone will simply continue going the path they started (even if you move out of the way) until the get destroyed by crashing into another object, such as a wall. They can be frozen with the Ice Flower. Several Fish Bones are also seen in the fish-tank in the background of Wendy O. Koopa's boss fight. Many more Fish Bones later appear in World 5-Ghost House in the room with the second Star Coin in the pool below.

Mario Kart 7

In Mario Kart 7 Several Fish Bones can be seen traveling through the waters of Wario Shipyard as minor obstacles. They do very little to impede your speed and can be knocked aside with the use of a Bullet Bill, Bob-omb, or a Starman.

Mario Party 9

Fish Bones appear in Mario Party 9. In the Captain Event of Blooper Beach, they will attack any players that land on the Unlucky Spaces on the way up causing them to lose 5 Mini Stars, if a player loses all their Mini Stars, they are out.

New Super Mario Bros. 2

Fish Bones later appear in New Super Mario Bros. 2 appearing in levels such as World 3-Tower, World Star-3, and World Star-6. They behave the same as they did before. In this game, they can also be defeated with the use of the Raccoon Tail or the Gold Flower.

New Super Mario Bros. U / New Super Luigi U / New Super Mario Bros. U Deluxe

In New Super Mario Bros. U, New Super Luigi U, and New Super Mario Bros. U Deluxe, Fish Bones reappear behaving the same way as they did in the two previous games. The use of the Starman and Ice Flower can be used to defeat them. They commonly appear in levels such as The Mighty Cannonship.

Paper Mario: Sticker Star

Two Fish Bones jumping onto Mario's Raft.

In Paper Mario: Sticker Star, Fish Bones only appear in the level Jungle Rapids where they charge and bite on Mario's raft attempting to break off a piece. Mario has to hammer them away in order to get rid of them. Note that Fish Bones are the only enemy in this game where Mario can physically attack but doesn't get into a battle with them.

Super Mario Maker / Super Mario Maker 2

Fish Bones appear in both installments of Super Mario Maker. In Super Mario Maker, Fish Bones are not directly accessible from the parts menu. Instead, a Dry Bones must be placed in an underwater course, and it will turn into a Fish Bone when you play the level. Fish Bones behave the same as in Super Mario World. Because of Fish Bones having to be placed underwater, they are not accessible in other course themes in the first game. In Super Mario Maker 2, however, the Fish Bones have their own slot in the parts menu, and therefore can be used in all course themes. When placed on land, they will immediately be defeated when they hit the ground, and can also be stomped on to defeat them. Fish Bones can also be defeated by the Cat Suit's Claw Swipe, the Boomerang Flower's boomerangs, and the Cannon Box's cannonballs. Fish Bones will not lock onto the player if they are wearing a Goomba Mask.


  • In the beta codings of Paper Mario: Sticker Star, there are battle sprites of Fish Bones that exist showing the Fish Bones were originally going to be fought as regular enemies in the game before becoming a basic obstacle in Jungle Rapids.

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