Battlefield is a special stage in Super Smash Bros. Melee (though it existed in Super Smash Bros. as the stage where you fight the Fighting Polygon Team) unlocked by clearing All Star mode on any difficulty, with any person. The field's main part is flat, just like Final Destination, but not as long. Above it lay three platforms, in pyramid style. This level is considered completely fair. It is one of the unbanned levels in tournament standard matches. It shares similarities to Final Destinationin the sense that the background is abstract and changes shape and color constantly.
In Classic, you fight the metal characters in this stage. In Adventure, you fight the Fighting Wire Frames, Metal Mario, and Metal Luigi on this stage. In All-Star, you fight Mewtwo and anyone else with him on this stage. In Multi-Man Melee, you fight the Fighting Wire Frames on this stage.
Recovery on this stage is difficult, due to the very thin edges on either end. If a player misses their edge with a vertical up B, they end up going underneath the stage to a certain death. It's harder to sweet spot the edge using characters such as Marth and Fox on this stage.