|Appearance||Super Smash Flash 2|
While it appears to be a simple flat stage at first, the main feature of the stage is wooden panels: two on the surface of the stage, one each on the sides, and one at the bottom of the cave. These wooden panels can be broken by attacks to allow entrance into and out of the cave inside the stage. In the center of the cave is wooden panel with a ceiling just a few feet above it where characters can be stage spiked down into the hole when the wooden panel is broken.
- The main music track is titled Palm Tree Paradise as a remix from the game Wario Land 4.
In Wario Land 4, Wario is trapped inside an ancient golden pyramid while treasure-hunting. Inside the pyramid there are six passages based on a different themes, each one with at least one level for Wario to explore. There is a green-colored passage called the Emerald Passage and its very first level is called Palm Tree Paradise. As the name states, this level takes place on a sunny beach chore filled with the eponymous palm trees and during certain parts of the level, Wario also stumbles upon caves portions filled with valuable treasures to collect. In SSF2, the stage is appropriately called Emerald Cave, named after the passage, and prominently features a cave below a palm tree-filled zone.
Emerald Cave has been ruled a banned stage by the Smash Flash back room. The inner cave creates an overly powerful camping spot, especially for characters such as Pikachu. The inner cave is also a cave of life, and over-centralizes gameplay on teching, while the pit in the middle can lead to extremely fast gimps or stage spikes that are otherwise impossible on neutral stages. The stage also features edges that are sometimes obscured by breakable walls, which can cause gimps if one of the walls respawns while a player is recovering.