Big Cheep Cheep

Big Cheep Cheeps, originally Mega Cheep-Cheeps, are large Cheep Cheeps that appear throughout the Mario franchise. Boss Basses and the Yoshi's Story Blurps have been used as a giant counterpart to Cheep Cheeps, and in some other games Porcupuffers and Cheep Chomps are as well.

Super Mario Bros.: Peach-hime Kyushutsu Dai Sakusen!
In Super Mario Bros.: Peach-hime Kyushutsu Dai Sakusen!, two abnormally-large Cheep-cheeps appear when Mario and Kibidango search for the star underwater. The first one chases after the pair mistake an angler fish for the star. It takes the appearance of a giant flat fish that puffs itself up until it explodes into many smaller versions of itself that rapidly bounce around the screen, hitting Mario six times. The second one also chases after Mario and Kibidango manage to retrieve the star from a clam, this time not as a flat fish. Mario and Kibidango swim away to a sunken ship. The Cheep-cheep rams the ship five times, causing it to also burst into smaller versions of itself, which do not hit Mario this time. This forces the sail down, making the ship begin to rise.

Mario Kart 64
In Mario Kart 64, a giant-sized Cheep Cheep appears in Banshee Boardwalk, though it is not an obstacle. The Cheep Cheep is spawned when the player is at a certain point on the track; idling in this spot will cause it to jump nonstop until the player moves again. Mario Kart DS replaces it with a bright red Bubba.

Mario Party 5
Big Cheep Cheeps reappear in the Mario Party 5 minigame Fish Upon a Star, destroying several blocks of land on contact, while temporally stunning players who risk falling off in the process. They have the same appearance as their regular counterparts from Mario Party 4.

Mario Party 7
Big Cheep Cheeps appear in Mario Party 7, appearing in the Duel minigames Fish & Cheeps and Bridge Work, where they knock players into the water if they are not careful.

Mario Party 8
Big Cheep Cheeps also make a minor appearance in Mario Party 8. In the minigame Rowed to Victory, the losing team of boaters will be chased by a Big Cheep Cheep and a few Cheep Cheeps.

Mario Party DS
Big Cheep Cheeps make a minor appearance in Mario Party DS  in the minigame Cheep Chump, where they can suck players into a whirlpool with their mouths. If a player is caught in their whirlpool, they are eliminated from the game.

Mario Party 10
Big Cheep Cheeps appear again in Mario Party 10, appearing only in the minigame Cheep Cheep Leap. Any Big Cheep Cheep that gets hit grants two points.

Super Mario Party
Big Cheep Cheeps reappear in Super Mario Party, appearing in River Survival if the player takes the Cheep Cheep Swarms path. They jump out of the water just like their smaller counterparts, but are bigger and harder to avoid.

New Super Mario Bros.
In New Super Mario Bros., Mega Cheep-Cheeps are about 3 1/3 times larger than normal Cheep-Cheeps. Along with Mega Deep-Cheeps, they are the largest Cheep-Cheeps in the game, even larger than the boss Cheepskipper. They will not target Mario or Luigi, but instead will follow a path oblivious to them, just like normal Cheep-Cheeps. Mega Cheep-Cheeps are colored red and are similar to Big Berthas. Each one is usually followed by about three Cheep-Cheeps. Mega Cheep-Cheeps are only used as a large counterpart to swimming Cheep-Cheeps; the larger counterpart for the jumping Cheep-Cheeps is instead Spike Bass, which has the additional trait of being unsafe to jump on. However, panorama artwork in the game's manual depicts a jumping Mega Cheep-Cheep, using the same artwork as normal-sized Cheep-Cheeps.

New Super Mario Bros. Wii
In New Super Mario Bros. Wii, their size has been reduced greatly, now only being around 1 1/2 times as large as the average Cheep Cheep.

New Super Mario Bros. 2
Big Cheep Cheeps reappear in New Super Mario Bros. 2, now closer to their size in New Super Mario Bros., being about 2 3/4 times as big as normal Cheep Cheeps. They are now slightly smaller than Cheep Chomps.

New Super Mario Bros. U / New Super Luigi U / New Super Mario Bros. U Deluxe
In New Super Mario Bros. U its size is reduced again, to the same size it has in New Super Mario Bros. Wii.

Super Mario Maker series
Big Cheep Cheeps reappear in Super Mario Maker, Super Mario Maker for Nintendo 3DS, and Super Mario Maker 2. The player can enlarge a normal Cheep Cheep with a Super Mushroom, turning it into a Big Cheep Cheep.

Mario & Sonic at the London 2012 Olympic Games
Big Cheep Cheeps appear in the Wii version of Mario & Sonic at the London 2012 Olympic Games as obstacles in Dream Long Jump. They come down from above, hitting players if they are not careful.

Paper Mario: Sticker Star
A Big Cheep Cheep appears as a mini-boss in Paper Mario: Sticker Star. It is encountered in Surfshine Harbor after Mario sets sail. The Big Cheep Cheep blocks Mario's access to Worlds 4, 5, and 6 as long as it remains undefeated. Comments made by various characters imply that this particular Cheep Cheep is a very rare sight especially given its size. Big Cheep Cheep's body appears to be made with a Chinese lantern.

In battle, the Big Cheep Cheep starts out beached on the pier. All it can do during this time is slam into Mario. After the Big Cheep Cheep takes enough damage, it hops into the water and regain all its HP. From the ocean, the Big Cheep Cheep can spray a powerful jet of water and automatically avoids any attacks from Mario. The only way to be able to attack the Big Cheep Cheep is by using the Fishhook sticker on it since the rest of his stickers can't reach. Doing this beaches the mini-boss once again, causing it to fly into a rage. The Big Cheep Cheep will only be able to slam into Mario after it gets fished out of the water. Each turn, the Big Cheep Cheep grows in size, increasing its attack power. If the Big Cheep Cheep grows large enough, it explodes, dealing 99 damage (30 if using Spike Helmet) to Mario. If it does deal 99 damage, it is an instant Game Over. Once it has been defeated, Mario can safely access the other three worlds.

Alternatively, using sharp stickers like Spike Helmet or Thumbtack when the Big Cheep Cheep attacks during the second phase will instantly defeat it. However, it will also damage Mario for 30 HP.

If a player attempts to use any type of Infinijump sticker before the Big Cheep Cheep hops into the ocean, its HP does not decrease lower than 20 HP and instead, the player receives Coins for every hit dealt to the Big Cheep Cheep after its health reaches this point.

The Big Cheep Cheep is one of two mini-bosses in the game that can be damaged with a First Strike. The other is the Big Chain Chomp from Chomp Ruins.

Paper Mario: The Origami King
In Paper Mario: The Origami King, Mario can fish a Big Cheep Cheep out of the water in all three fishing spots. However, the Big Cheep Cheep in Shogun Studios may be revealed to be a disguised Ninji after being caught, although Mario will be given 300 coins if this happens. The biggest Cheep Cheep that can be fished is from Full Moon Island, and catching it as well as catching the biggest Blooper will reward Mario with the Fish Finder trophy. Unlike Sticker Star, its overworld sprite now has the paper outline from Mario & Luigi: Paper Jam.

The Legend of Zelda: Four Swords Adventures
Large-sized Cheep Cheeps also appear in The Legend of Zelda: Four Swords Adventures, alongside the normal size. They reside in Lake Hylia, the Desert of Doubt, and Frozen Hyrule. They charge at Link and cause critical damage to the hero.

Other appearances
Sprites found in prototype revisions of Super Mario World 2: Yoshi's Island include sprites for large Flopsy Fish, but it is not included in the final game in any way.