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Purity Forest is automatically unlocked after clearing Pitfall Valley and obtaining the Blue Sky Meadow Friend Area from an optional mission.

This dungeon is also one of the few level one dungeons, meaning that you start off at level 1, have no items, and have only your first four learnable moves in your roster. the only thing you keep is your form; if you head in as a Swampert, you will stay a Swampert.

Level one dungeons are extremely hard, for several reasons: One, you have no level advantage over your enemies, and way more often than not they will have level advantages over you. Two, your Belly will drain quickly, so you will only survive if you are lucky enough to find ample Belly filling items throughout your journey. Three, the dungeon is 99 floors long, leaving plenty of room for you to be KO'd by enemies or by loss of Belly. Finally, no Pokémon will join you in Purity Forest, adding to the difficulty.

[edit] Items

One very important item is found here: the rare and invaluable Tight Belt! Make sure to immediately pick one up if you can find one.

• Tight Belt
• : 300-400
• Gummis
• Big Apples

[edit] Enemies

Name	Type	Level	Levels seen
Pidgey	/	1	1-3
Jigglypuff		2	1-3
Bellsprout	/	1	1-3
Cleffa		1	1-4
Wurmple		1	2-4
Caterpie		1	2-4
Exeggcute	/	1	3-4
Poochyena		3	4-6
Rattata		3	5-7
Nidoran♀		4	5-7
Togepi		7	6-10
Zigzagoon		5	7-8
Clefairy		8	7-9
Elekid		4	7-9
Voltorb		3	7-10
Aron	/	6	8-9
Spearow	/	4	8-10
Hoppip	/	8	9-10
Metapod		1	10
Plusle (red only)		3	10-11
Minun (blue only)		3	10-11
Weedle	/	8	11
Ralts		8	11-13
Marill		8	11-14
Eevee		9	11-14
Geodude	/	5	12-14
Baltoy	/	5	12-14
Meditite	/	6	13-14
Beldum	/	5	14-16
Exeggutor	/	8	15-16
Skarmory	/	10	15-17
Natu	/	8	16-17
Scyther	/	10	16-18
Sudowoodo		7	17-19
Slakoth		8	17-20
Linoone		8	18-20
Oddish	/	7	18-24
Sentret		6	19-21
Swinub	/	8	19-22
Sunflora		8	20-24
Castform		10	21-22, 54-59, 71-72, 75-79
Ledyba	/	7	21-25
Shroomish		9	21-25
Farfetch'd		10	23-28
Poliwag		10	24-26
Trapinch		11	24-28
Growlithe		12	25-26
Yanma	/	10	26-30
Weepinbell	/	13	26-31
Spinarak	/	11	26-32
Dustox	/	10	27-30
Teddiursa		10	28-29
Electrike		12	30-34
Gligar	/	12	31-34
Beedrill	/	10	31-35
Nidoran♂		12	31-35
Stantler		12	31-36
Ampharos		13	33
Electabuzz		12	35-37
Doduo	/	14	35-39
Manectric		10	36-40
Tauros		15	36-42
Gloom	/	10	36-47
Cacnea		13	37-39
Murkrow	/	14	39-40
Heracross	/	14	39-42
Breloom	/	14	40-41
Cacturne	/	14	40-45
Skiploom	/	13	42-46
Ariados	/	14	42-46
Dunsparce		13	43-44
Nincada	/	14	44-46
Golbat	/	10	46-50
Magmar		21	47-49, 77-79
Bagon		16	47-49
Nidorina		15	47-50
Nidorino		15	47-50
Tangela		14	48-50
Illumise		20	49-51
Arcanine		18	50-55
Electrode		20	51-53
Forretress	/	23	51-53, 86-88
Fearow	/	17	51-54
Shuckle	/	15	51-54
Hitmonlee		22	51-56
Hitmonchan		22	51-56
Magby		17	53-55, 72-76
Numel	/	14	55-56
Magcargo	/	21	56-57
Mightyena		17	56-60
Rapidash		16	57-59
Torkoal		15	57-59
Rhyhorn	/	16	58-61
Swablu	/	18	58-64
Snorunt		20	60-62
Piloswine	/	16	60-63
Arbok		21	60-64
Ditto		25	60-64
Furret		18	61-63
Lairon	/	17	62-63
Metang	/	17	62-64
Pineco		18	63-64
Dugtrio		20	65-68
Pupitar	/	17	65-68
Zangoose		18	66-69
Shelgon		19	66-69
Vileplume	/	14	66-70, 72, 74-79
Masquerain	/	27	70-71
Glalie		20	70-73
Slaking		15	70-75
Koffing		20	71-75
Rhydon	/	23	73-77
Nidoqueen	/	20	74-76
Golem	/	15	76-79
Nidoking	/	21	77-79
Porygon2 (blue only)		20	79-84
Grimer		20	80-85
Parasect	/	30	80-89, 92-98
Camerupt	/	25	81-85
Shuppet		28	81-85
Ponyta		30	83-85
Ledian	/	24	86-88
Solrock	/	24	86-89
Venomoth	/	18	86-93
Weezing		20	86-98
Altaria	/	24	88-92
Dusclops		24	90-93
Scizor	/	24	90-94
Aerodactyl	/	23	94-97
Flygon	/	25	95
Tropius	/	25	95
Metagross	/	28	95-98
Claydol	/	26	97-98
Salamence	/	26	98
Celebi	/	45	99

[edit] Recruiting Celebi

Yes, there is more reason to come here than to test your luck. Waiting at the end is the Legendary Pokémon Celebi. Never fear, you will not be forced to fight a strong legendary and risk dying after your arduous 99 floor trek. Celebi will ask you if she can join your team, so say yes. You will have a level 45 Legendary Celebi on your team now. Unfortunately, she has more recovery moves than fighting moves, so she's better as a team mate than a lead Pokémon. Celebi comes with her friend area when recruited, Healing Forest.