When (x) joins the fight...

[Mario Paint Anime Girl]

The above user names a character, the next user makes a pun like if they were joining Smash, repeat

Doctor Goomba Tower

 

[Hooded Pitohui]

Stacks Up New Patients!

...geddit? They're new patients because they've been injured, and they're stacked in a pile, with Dr. Goomba Tower also being a st... ah, nevermind all that.

Kamek

 

[Bugzzy]

Conjures Up Trouble!

Bandana Dee (still sad that he is still not in Smash)

 

[MightyMario]

Waddles into Smash!

Crash Bandicoot

 

[Bugzzy]

Just In Time!

Koopa Troopa

 

[MightyMario]

Marches into Battle!

Bugs Bunny

 

[Renjamin]

Should'a taken that left turn at Albuquerque



Jimmy Roberts

 

[Mario Paint Anime Girl]

Jimmy Roberts takes the spotlight!
M. Bison

 

[Zdrmonster Productions]

Says "YES!" on his way!

SpongeBob SquarePants

 

[Bugzzy]

Cooks up trouble!

Mr. Frosty

 

[RockPikmin#37]

Rolls up and Throws down!

Cucco

 

[Pixelcraftian]

Charges into Battle!

Nabbit

 

[Renjamin]

Steals the spotlight


Matt Smith