Similar to its previous stage Flat Zone from Super Smash Bros. Melee, it is set on a standard Widescreen Game & Watch. However, the stage changes it's scenery over time which are based on various Game and Watch games. They are:
Fire where the characters can bounce on the rescue team’s blanket to launch high into the air.
Oil Panic where the characters can stand on the multiple levels.
Lion where the stage takes place in the three leveled cages. The two men hoding the chairs will move up and down. If you get hit by them, it'll cause massive damage.
Chef which features the chef who can launch food and characters into the air. If you get hit with the food, it will cause damage.
The bolded tracks must be unlocked. The italicized tracks are returning from a past game.