Devil's Machine

Devil's Machine is an unlockable stage in Super Smash Flash 2, initially teased in an unannounced stream on Halloween 2015. It can be unlocked by playing a match with 's second costume and self-destructing three times.

Layout
Devil's Machine is a long, flat, featureless stage. The machine itself is in the center, and Giygas surrounds the stage, but neither can be interacted with. The "hazard", in its place, is Giygas regularly interjecting with the unsettling, atmospheric dialogue that he's known for.

The stage's size is massive. Zooming out with the camera cannot capture its entire area.

Music

 * The main music track is titled Porky Means Business, an arrangement of the final battle theme from EarthBound.

Tournament legality
The stage is completely unsuitable for tournament play. It is not only one of the largest if not the single largest stage in the game, a trait which heavily encourages overly defensive play, but it is also a walk-off stage, a trait that gets stages banned on sight due to removing a significant portion of the metagame in off-stage and ledge play.

Origin
The Devil's Machine is the site of the final battle against Porky Minch and Giygas in EarthBound. Located in the Cave of the Past, Ness and his party have to sacrifice their lives in order to travel back in time in robot bodies and access it.

The machine both seals away and protects Giygas; attempting to attack it will rebound the attack on Ness's party with increased damage. It is destroyed after Porky is defeated and unleashes Giygas's full power.