Castle Wily

Castle Wily also referred to as Wily Castle, was originally a stage in Super Smash Flash 2 from the  series that served as a home stage for. It first appeared at one of the SSF2 Mini-Trailers and was finally playable in the demo v0.6. It was scrapped in v0.9a in favor of a similarly themed, with a different layout, stage called Skull Fortress.

Layout
The stage is based on the Castle Wily grounds from Mega Man 2. There are two walls with Wily's logo on them that players can stand on and two hover pass-through platforms between them. On the right side is the entrance of Castle Wily, there are two spaces where anyone can enter, but if one follows the way, it will result in a KO.

Mets and DeluPipis appear as stage hazards. It is implied that, possibly, Metools will ram into players and DeluPipis will drop its eggs to hatch a flock of Child Pipis that damage any player they come into contact with. It is not known if the player will be able to attack these enemies.

Music

 * The music of the stage is a remixed version of the Wily Castle theme from Mega Man 2. It was also used in SSF2 v0.8 Mega Man mini dev blog. This song have also played on Skull Fortress stage and rename call it, Skull Fortress while the stage has been removed.

Origin
Castle Wily is the common name used for Dr. Wily's several fortresses with a skull motif that appear as the final stages of most games from the original Mega Man series. However, not all of them have names. For example, in the first  game, Wily's base is called, Dr. Wily's robot manufacturing plant, but was renamed Wily Castle in Mega Man Powered Up. They often have several hazards, mazes, strong enemies, a rematch against the Robot Masters, and a final fight against Wily inside one of his machines; like the Wily Machines and Wily Capsules.

As said before and hinted by the DOJO!!!, SSF2 ' s Castle Wily version takes its appearance from the game Mega Man 2, more specifically the first part of the castle. However, the appearance was partially updated to look more like the levels from Mega Man 7, which explains why DeluPipis appear instead of regular Pipis.