92: Gastly 94: Gengar

Haunter

93: Haunter

Kanto

	HeartGold	SoulSilver	FireRed	LeafGreen	Crystal	Gold	Silver	Yellow	Red	Blue
Walking in tall grass or a cave
Lost Cave item rooms			30% L44–52	30% L44–52
Lost Cave room 1			30% L44–52	30% L44–52
Lost Cave room 10			30% L44–52	30% L44–52
Lost Cave room 2			30% L44–52	30% L44–52
Lost Cave room 3			30% L44–52	30% L44–52
Lost Cave room 4			30% L44–52	30% L44–52
Lost Cave room 5			30% L44–52	30% L44–52
Lost Cave room 6			30% L44–52	30% L44–52
Lost Cave room 7			30% L44–52	30% L44–52
Lost Cave room 8			30% L44–52	30% L44–52
Lost Cave room 9			30% L44–52	30% L44–52
Pokémon Tower 3F			1% L20	1% L20				5% L20–25	1% L25	1% L25
Pokémon Tower 4F			5% L20	5% L20				5% L20–25	5% L25	5% L25
Pokémon Tower 5F			5% L20	5% L20				5% L22–27	5% L25	5% L25
Pokémon Tower 6F			6% L21–23	6% L21–23				5% L22–27	6% L26–28	6% L26–28
Pokémon Tower 7F			15% L23–25	15% L23–25				5% L24–29	15% L28–30	15% L28–30
Rock Tunnel 1F					+10% L17
Rock Tunnel B1F					+5% L15
Route 8	+20% L19 +10% L19	+20% L19 +10% L19			+10% L17	+30% L20	+30% L20

Sinnoh

	Platinum	Diamond	Pearl
Walking in tall grass or a cave
Old Chateau 2F		+8% L16 +8% L16 +8% L16 +8% L16 +8% L16	+8% L16 +8% L16 +8% L16 +8% L16 +8% L16
Old Chateau 2F left room		+8% L16 +8% L16 +8% L16 +8% L16 +8% L16	+8% L16 +8% L16 +8% L16 +8% L16 +8% L16
Old Chateau 2F leftmost room		+8% L16 +8% L16 +8% L16 +8% L16 +8% L16	+8% L16 +8% L16 +8% L16 +8% L16 +8% L16
Old Chateau 2F middle room		+8% L16 +8% L16 +8% L16 +8% L16 +8% L16	+8% L16 +8% L16 +8% L16 +8% L16 +8% L16
Old Chateau 2F private room		+8% L16 +8% L16 +8% L16 +8% L16 +8% L16	+8% L16 +8% L16 +8% L16 +8% L16 +8% L16
Old Chateau 2F right room		+4% L16 +4% L16 +4% L16 +4% L16 +4% L16	+4% L16 +4% L16 +4% L16 +4% L16 +4% L16
Old Chateau 2F rightmost room		+8% L16 +8% L16 +8% L16 +8% L16 +8% L16	+8% L16 +8% L16 +8% L16 +8% L16 +8% L16
Old Chateau dining room		+8% L16 +8% L16 +8% L16 +8% L16 +8% L16	+8% L16 +8% L16 +8% L16 +8% L16 +8% L16
Old Chateau entrance		+8% L16 +8% L16 +8% L16 +8% L16 +8% L16	+8% L16 +8% L16 +8% L16 +8% L16 +8% L16
Turnback Cave after pillar 3	30% L45–47 +10% L46 +10% L46	30% L54–56	30% L54–56
Turnback Cave before pillar 1		30% L44–46	30% L44–46
Turnback Cave between pillars 1 and 2	30% L25–27 +10% L26 +10% L26	30% L54–56	30% L54–56
Turnback Cave between pillars 2 and 3	30% L35–37 +10% L36 +10% L36	30% L64–66	30% L64–66
Turnback Cave pillar 1		30% L54–56	30% L54–56
Turnback Cave pillar 2	30% L35–37 +10% L36 +10% L36	30% L54–56	30% L54–56
Turnback Cave pillar 3	30% L35–37 +10% L36 +10% L36	30% L54–56	30% L54–56

Kalos

	X	Y
Walking in tall grass or a cave
Frost Cavern Unknown Area 314	16% L38–40	16% L38–40
Frost Cavern Unknown Area 315	16% L38–40	20% L38–40
Frost Cavern Unknown Area 316	16% L38–40	16% L38–40
Frost Cavern Unknown Area 317	16% L38–40	16% L38–40
Route 14	5% L31	5% L31
Victory Road Unknown Area 322	10% L58	10% L58
Victory Road Unknown Area 324	10% L58	10% L58
Victory Road Unknown Area 326	10% L58	10% L58
Victory Road Unknown Area 328	10% L58	10% L58
	X	Y
Walking in yellow flowers
Route 19	5% L47	5% L47
	X	Y
Walking in purple flowers
Route 19	5% L47	5% L47
	X	Y
Walking on rough terrain
Route 14	5% L31	5% L31
Route 19	5% L47	5% L47