The list below contains a description of each stage present in Super Smash Bros. Supernova, based on their order of appearance on the stage-selection screen (which is, in-turn, in order of series by time of release with priority on series with more than one character reprsentative).
Super Smash Bros. stages
An entirely flat stage of a rather small size, it has been a staple feature of every Super Smash Bros. game since the original on the Nintendo 64. Each time, it has received a new design, but this time, it now has 105 unique designs; each design is based on either a past version of this stage or any of the 98 other stages in this game (with Battlefield as the sole exception).
A stage about as large as Final Destination, but with three thin platforms floating over the stage in the arrangement of a triangle. The stage has a much calmer background than that of Final Destination, but similarly has 105 alternate designs, based on past variations as well as other stages in this game. The Fighting Teams are battled here.
Originally from Super Smash Bros. 64, serving as the stage for Metal Mario in Classic mode, it has returned after an absence for the last four games. It is a short, uneven stage with just a single platform over the left side. The Metal Character is fought here.
Not truly a stage, it is still based on the location of the same name in Super Smash Bros. Supernova; important to story mode, it is essentially a dark world. The stage consists of four black-and-blue platforms unevenly assorted and slightly tilted. The Subspace Clone is dueled here.