Special introductions

In Super Smash Bros. Clash, some characters will perform different poses before a match, say different things when they arrive on screen in a match and so on if they are fighting a certain character in certain match types. This is somewhat similar to the Rival concept.

These are relatively scarce in comparison to many other character-based interactions in the game. They can deliver some things, though.

In matches where the requirements for multiple interactions are met, the character will do a random interaction.

Mario[]

In a 1-versus-1 match versus Bowser, Mario will arrive on screen climbing up from a set of stairs.

Bowser[]

In a 1-versus-1 match versus Mario, Bowser roars after climbing out of the wall of flames.
When he and Bowser Jr. are facing Mario and Luigi in a team, Bowser and Bowser Jr. will both appear from Koopa Clown Cars.

Bowser Jr.[]

When facing Mario, in a 1-v-1 or otherwise, Bowser Jr. appears as Shadow Mario before using his paintbrush to reveal the true Bowser Jr.
When he and Bowser are facing Mario and Luigi in a team, Bowser and Bowser Jr. will both appear from Koopa Clown Cars.

Donkey Kong[]

In a match against Mario, 1v1 or otherwise, Donkey Kong will appear on screen without the barrel and throw a barrel over the stage.

Snake[]

Sonic[]

In a 1-versus-1 match against Knuckles, Sonic and Knuckles will appear in the middle of the screen and clash with their fists, then get into starting positions.
In a 1-versus-1 match against his alternate scheme, Metal Sonic, the latter will appear in a form of liquid before taking his normal self similarly to how Neo Metal Sonic would form from liquid after some cutscenes in Sonic Heroes.

Knuckles[]

In a 1-versus-1 match against Sonic, Sonic and Knuckles will appear in the middle of the screen and clash with their fists, then get into starting positions.