Cameos

Throughout the Mario series, many characters from other series made cameos. The large majority of these cameos are from characters developed by Shigeru Miyamoto and Nintendo. Some non-Nintendo characters have appeared as well, such as Sonic or Earthworm Jim.

Pikmin


Pikmin are a species of small plant-like creatures that exist in the Pikmin series. They have also appeared in the Marioverse on a number of occasions. Of the Pikmin that have appeared in the Mario series, only three varieties of Pikmin have appeared. Pikmin made their first appearance into the Marioverse during the events of Super Smash Bros. Melee. Pikmin can be collected as a trophy. A savegame of the Pikmin game is needed on the GameCube's Memory Card in order to get the Captain Olimar trophy.

Pikmin later made another cameo during the events of Mario Golf: Toadstool Tour. If certain flower beds were struck by a golf ball, Pikmin would pop out of the flowerbed and attempt to flee. These flower beds can be found in various stages. In WarioWare: Smooth Moves, Pikmin made an appearance in a microgame.

Additionally, in the game Pikmin 2, a box of matches displaying Bowser's face can be obtained as a treasure. The game Super Mario 128 was also converted into what is now known as Pikmin as well.

Earthworm Jim
Earthworm Jim is a mutated humanoid earthworm wielding a red ray-gun. Like Sonic the Hedgehog, it is believed that Earthworm Jim once entered the Marioverse. In Donkey Kong Country 2, Donkey Kong's father, Cranky Kong, created a challenge to see who could find the most secret DK coins on Crocodile Isle. Mario came in first, Yoshi came in second and Link came in last (Later on, Diddy Kong would claim the spot as number one). Earthworm Jim seems to have entered this competition as well, but didn't even come in third. This made him leave the island, and set his ray-gun as evidence that he came.

Ridley


Ridley is a large, dragon-like alien and a character and the main villain in the Metroid series of games.

In Super Smash Bros., Ridley can occasionally be seen flying in the background of the Planet Zebes arena.

Ridley also makes a brief appearance in the opening cinema of Super Smash Bros. Melee, where he can be seen battling his archenemy, Samus Aran. A trophy of Ridley can also be obtained in Super Smash Bros. Melee.

Samus
In Super Mario RPG, if you look at Booster's doll, you can spot a Samus doll.

Also, you can talk to Samus in the game. When you first reach Land's End, avoid beating it. Go back to the Mushroom Kingdom and sleep in the guest room. When you wake up, go to Peach's room and you'll see Samus sleeping, resting for her battle against Mother Brain.

In Warioland II, the Metroid is one of the treasures the player collects.

Sonic
Sonic the Hedgehog makes a cameo appearance in Donkey Kong Country 2. Like Earthworm Jim, Sonic competed in a contest to see who could find the most secret DK coins on Crocodile Isle. Like Earthworm Jim, Sonic didn't do very well, not evening placing third. Filled with shame, he left behind his trademark shoes.

N&B Blocks
In the Space Zone of Super Mario Land 2 features LEGO-like surfaces. They are not LEGOs, but N&B Blocks, a toy manufactured by Nintendo in the 70s.

Legend of Zelda
In Super Mario Bros. 3, the tune the warp whistle plays is also found in The Legend of Zelda. The whirlwind is from the same game.

In Super Mario RPG, Link appears sleeping at the Rose Town Inn every time you sleep there. If you try to talk to him, the Zelda discovery tune plays.

In Stages 2-3 and 2-4Yoshi's Story, the name "Zelda" appears in the newspaper in the background.

In Warioland II, the Ocarina of Time is one of the treasures the player collects.

In Mario Golf for the Nintendo 64, the names of various Zelda characters appear on the score board. In the Gameboy version, the last club is called "Link's Club" and uses the triforce as its logo.

StarFox
If you go to the lobby of Hinopio's Inn, you can see a model of an Arwing.

In Mario Golf for the Nintendo 64, the names of various StarFox characters appear on the score board.

F-Zero
If you go to the lobby of Hinopio's Inn, you can see a model of Captain Falcon's Blue Falcon and Samurai Goroh's Fire Stingray.

Kirby
Kirby appears on a poster for the movie, "Kirby's Story", in Mario & Luigi: Superstar Saga.

Starfy
Starfy appears on a poster for the movie, "Legend of Stafy", in Mario & Luigi: Superstar Saga.

In Super Princess Peach, Starfy appears as the Starfish enemy.

Fire Emblem
One toad in Paper Mario: The Thousand Year Door mentions that he enjoys Gameboy Advance games, especially Fire Emblem.

R.O.B.
In Mario Kart DS, R.O.B. the robot appears as a playable character.