Do you know what the above user's avatar is?

[Wittgenstein]

nah, don't know who it is (two people, one of which seems common in your avatars but I don't know them)

 

[E. C. Koopa]

A character from Wreck It Ralph, iirc. I only know that because I think you mentioned it somewhere.

 

[Princess Céline]

Luigi with Nintendo's latest home console.

 

[Koops]

Zelda looking at something with hate.

 

[Dr. Peach]

Peach dressed as Luigi.

 

[Lily]

Roll from Mega Man.

 

[Koops]

A T-rex possessed by Mario.

 

[Princess Céline]

Peach dressed (unwillingly) as Luigi

 

[Dr. Peach]

Princess Zelda in Smash 4

 

[Princess Céline]

Maria Renard

 

[Xiahou Dun]

Silly Zell D'oh.

 

[Koops]

Red Luigi.

 

[Princess Céline]

Peach in Luigi's clothing

 

[E. C. Koopa]

The other princess who got kidnapped by Petey in SSBB.

 

[Dr. Peach]

Luigi with a Switch

 

[Princess Céline]

The other princess who got kidnapped by Petey in SSBB.

It doesn't always happen though. It's up to you whom you rescue from Petey.

The above poster is Maria Renard

 

[thatstuff]

let me guess princess zelda?

 

[Princess Céline]

Spongebob

 

[Xiahou Dun]

Embodiment of the Triforce of Wisdom.

 

[Koops]

A red fat italian plumber holding a canon.

 

[Princess Céline]

A princess in a plumber's outfit

 

[E. C. Koopa]

Zelda, probably after seeing something on the internet that she didn't want to see.

 

[Koops]

Luigi with a Switch.

 

[Xiahou Dun]

Peach in Luigi's clothes.

 

[Dr. Peach]

Mario with a laser cannon