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There are three different levels in Mt. Moon, populated by four types of Pokémon and multiple trainers. Also along the way, you'll notice that the criminal gang Team Rocket is carrying out an operation in Mt. Moon, and it's up to you to blow their operation wide open!

[edit] Pokémon found

Floor 1

FireRed	Level	Encounter Rate	LeafGreen	Level	Encounter Rate
Zubat	7-10	69%	Zubat	7-10	69%
Geodude	7-9	25%	Geodude	7-9	25%
Paras	8	5%	Paras	8	5%
Clefairy	8	1%	Clefairy	8	1%

Basement Floor 1

FireRed	Level	Encounter Rate	LeafGreen	Level	Encounter Rate
Paras	7-10	100%	Paras	7-10	100%

Basement Floor 2

FireRed	Level	Encounter Rate	LeafGreen	Level	Encounter Rate
Zubat	8-11	49%	Zubat	8-11	49%
Geodude	9-10	30%	Geodude	9-10	30%
Paras	10-12	15%	Paras	10-12	15%
Clefairy	10-12	6%	Clefairy	10-12	6%

#41 Zubat	#74 Geodude
The most common Pokémon among caves in all the Pokémon Core games. At this part of the game you can only evolve it into Golbat. In order to evolve it further into Crobat, you will need to beat the Elite Four and to raise Golbat's happiness to the maximum.	The first Rock-type Pokémon in this game. It has powerful attacks early on and is very easy to train. However, you can only evolve it into Golem by trading it with someone else.
#46 Paras	#35 Clefairy
A weak Bug-type Pokémon. It is very hard to train Paras and he doesn't learn any powerful attacks, nor does his evolved form.	Clefairy the Moon Pokémon. It evolves by using the Moon Stone. It has some decent attacks that can help you at this part of the game, and just like Jigglypuff it can learn many powerful TMs and has some very useful egg moves. However, it is very rare.

[edit] Battles

Floor 1

	Name	1st	2nd	3rd	Money
1	Kent	Weedle 11	Kakuna 11		132
2	Iris	Clefairy 14			224
3	Jovan	Magnemite 11	Voltorb 11		264
4	Robby	Caterpie 10	Metapod 10	Caterpie 10	120
5	Miriam	Oddish 11	Bellsprout 11		176
6	Josh	Rattata 10	Rattata 10	Zubat 10	160
7	Marcos	Geodude 10	Geodude 10	Onix 10	360

Basement Floor 2

	Name	1st	2nd	3rd	Money
TR	Grunt	Sandshrew 11	Rattata 11	Zubat 11	352
TR	Grunt	Zubat 11	Ekans 11		352
TR	Grunt	Rattata 13	Sandshrew 13		416
TR	Grunt	Rattata 13	Zubat 13		416
5	Miguel	Grimer 12	Voltorb 12	Koffing 12	288

[edit] Items

• TM09 Bullet Seed (F1)
• Paralyzed Heal (F1)
• Star Piece (BF2: 1st ladder)
• Potion (F1)
• Rare Candy (F1)
• Escape Rope (F1)
• Ether (BF2: 2nd ladder - hidden in the lone rock)
• TM46 Thief (BF2)
• Moonstone ×2 (F1),(BF2: hidden in rock before you choose a fossil)
• Revive (BF2: last ladder)
• Helix Fossil (BF2, can choose only 1 fossil)
• Dome Fossil (BF2, can choose only 1 fossil)
• Antidote (BF2)