Legend Terrain

Mew is featured as a regular random enemy instead of a boss encounter and is the only enemy who can appear in all four versions of the stage; the odds of it appearing are based on the number of stars for the area being visited, with better odds for more stars. In the Special version of the stage, it will always appear with a horde of Sylveon, who otherwise only appear in the boss chamber.

The boss of the Special section is Arceus, who can appear in its normal form but can also appear with any of its Plates in place. The Plate in use is pre-determined by the date, and is the same for everyone on that day. The order of Plate appearance is according to the following order from the game. Day 1 is presumed to be a Normal-type Arceus here for illustration purposes, but it's possible for a player to encounter any of the types first, at which point the order can be followed from then on.

For an example, if a player encounters a Bug-type Arceus on the first visit to the area and player revisits the area the next day, the Arceus encountered will be a Ghost-type Arceus. The following day will have a Steel-type Arceus, and so on.

After Arceus appears as a Fairy-type, it will go back to a Normal-type Arceus the next day.

Arceus's changing type is reflected in the following table. The type shown is the type that will be found by players battling Arceus on today's date as listed in UTC time (at the top of the page); depending on the player's actual date, the result will differ according to the table above by one day.

Pokémon		Entrance	Center	Back	Special
	Drowzee	✔	✔	✔
	Hypno	✔	✔	✔
	Eevee				✔
	Vaporeon				✔
	Jolteon				✔
	Flareon				✔
	Mew	✔	✔	✔	✔
	Espeon				✔
	Umbreon				✔
	Slakoth	✔	✔	✔
	Vigoroth	Boss	✔	✔
	Slaking			Boss
	Spoink	✔	✔	✔
	Grumpig	✔	✔	✔
	Leafeon				✔
	Glaceon				✔
	Arceus Psychic-type				Boss
	Gothita	✔	✔	✔
	Gothorita	✔	✔	✔
	Duosion	✔	✔	✔
	Reuniclus		Boss	✔
	Sylveon				✔

Unown appears as a regular enemy in all sections of the Mineral Crust Hollow. Its shape depends on the day of the month. If it's the first, all Unown found in the stage will be "A" shape; on the second, "B", and so on; with "!" and "?" showing up on the 27th and 28th day respectively. On the 29th, 30th, or 31st day of a month, random shapes appear, and multiple Unown in the stage can be different shapes.