|Home stage to||Melee:|
|Availability||Starter (SSBM and SSBB)|
|Crate Type||Presents (SSBB Only)|
|Tournament legal (SSBM)|
|Tournament legal (SSBB)|
Announced at E3 2001, Onett is the home of Ness, a stage centralized around the EarthBound world. It consists of two buildings on the far right and left, and a series of unstable awnings in the center. The awnings in the center of the stage will eventually give way, if enough players jump onto it. The awnings will be reset after a short period of time. On occasion, an exclamation point (in both Brawl and Melee) will appear onscreen, signifying that a car or van will pass by the bottom of the stage. These can hit the player(s) or opponent(s), so they should be avoided or guarded against. Characters can only be KO'd off either side of the stage or the top of the stage, as there are no drop-off points on this stage.
In All-Star mode, this stage is played on when you face Ness and any of his teammates.
- Mother (Melee)
- Mother 2 (Melee)
Song in bold must be unlocked
This stage is from EarthBound. In EarthBound, Onett is Ness' hometown in Eagleland. One of the first things the player has to do in EarthBound is to go to the drugstore to buy a weapon upgrade. Onett also features red and blue houses. In Melee, the red building on left doesn't look similar to any buildings in EarthBound, but the blue one on the right looks similar to the smaller blue houses in Onett. Ironically, in EarthBound, if one jumps in front of a moving car, it stops until one gets out of the way. This is not true in Melee, as cars continue to drive and even hit the players which might be a reference to either the Car and Van enemies in the Mother series or the Runaway Five's driving, who at one point back the van over the sidewalk and yell, "Hey, sidewalk! Get out of my way!" Vehicles from EarthBound such as the Runaway Five's Tour Bus and taxis are some of the vehicles featured on the stage. Numerous features of Onett and other towns can be seen in the background such as the arcade, bulletin boards, the meteor site and Dusty Dunes Desert. The fore ground also features many items from Earthbound such as the stalls from Burglin Park and bicycles. 
The primary music for this stage is from the Mother theme "Bein' Friends", which is the second overworld theme from Mother. The song is also mixed in with Mother's Eight Melodies, and at the end of the song can be heard the tune that plays when the player encounters an enemy in Mother. The alternate music is "Pollyanna", which is the first overworld theme from Mother and the theme that plays shortly for Ness' house in EarthBound. 
The main hazards of this stage are the different colored vehicles that speed by the road at the bottom of the arena.
- Taxi Cab (Yellow car) and Teal Coupe - These cars both do the exact same amount of damage and knockback. The coupe is most likely to spin out whenever it hits an opponent, and the larger the opponent, the more likely.
- Magenta Coupe - This car deals reverse knockback, meaning that it sends the victim flying behind it. Very much like Dr. Mario's D-tilt, yet much more powerful.
- Runaway Five's Tour Bus - This car spikes any character it hits. Being that it's on the ground, the opponent can only be sent downward if in the middle of a short hop, otherwise the victim is sent upward. Also, this is the vehicle driven by a Runaway Five member as described on the warning poster.
Changes from Melee to BrawlEdit
Eagleland: Onett returns in Super Smash Bros. Brawl as EarthBound: Onett. One change in the stage is that the right edge of the left building's roof can no longer be grabbed. Also, there are slight lips on the both sides of the house on the right. This prevents characters against these walls from jumping to avoid cars. However, the cars in this version of Onett are far weaker and have potentially 0 KO ability unless very close to the walk-off edges, although hitstun is lethal and can interrupt most attacks.
Another slight change to this stage is that the red cross on the building of the Hospital has been removed. This may be because the American Red Cross, who hold the trademark on the symbol, have enacted a fierce protection of the symbol in recent years resulting in its removal from many games and re-releases of games (for example, the health packs in the Xbox Live Arcade re-release of Doom II have also had the red cross removed and replaced by pills, and the health crates that appeared in the Xbox Live Arcade and PlayStation 3 versions of Worms feature green crosses as opposed to the red crosses in previous games). Alternatively, it could be a reference to its removal in the original EarthBound game.
The warning sign on the right side of the stage is only readable in Brawl when the Devil assist trophy moves the stage to the right.
- If the player stands just to the right of the blue house and pauses, zoom out to see the "Onett Message Board" to the right. It reads "Caution, A black van driven by this guy (seen in the picture right of the message) has been spotted driving recklessly through town. Be careful!". This sign cannot be properly read in Brawl.
- The meteorite, Lier X. Agerate's, Ness's house, the Minch house, the Traveling Entertainers' Shack and entrance to Giant's Step, the Gold-Digging Man's Backhoe, and the hospital from EarthBound can all be seen in the background. However, the stage's geography differs drastically from that of the original game, as many buildings are incorrectly placed.
- In Super Smash Bros. Brawl, there is a glitch involving the soccer ball item. If the ball is hit and lands on one of the bushes suspended in the air above the left house, it will bounce continuously, causing the bush to bounce, until a player or another item steps onto it.
- Also in Brawl, when Jigglypuff uses Puff Up on the part between two buildings, anyone who stay with Jigglypuff will get stuck and take extreme damage so no one will unable to go offscreen.
- Interestingly, in Brawl whilst other returning stages feature music tracks from another non-returning Melee stage of the same series (Princess Peach's Castle is featured on Rainbow Cruise and Mute City on Big Blue for example), the music from Fourside does not feature on Onett. Probably because Onett had an alternate song in Melee (Mother 2). However Pokémon Stadium in Brawl does have 2 alternate songs.
- Since Fourside and New Pork City are also banned from tournaments, that means no stage from the EarthBound/Mother universe has regularly been seen in competitive play.