27: Sandshrew 29: Nidoran♀

Sandslash

28: Sandslash

Kanto

	HeartGold	SoulSilver	FireRed	LeafGreen	Crystal	Gold	Silver	Yellow	Red	Blue
Walking in tall grass or a cave
Cerulean Cave 1F								10% L52		10% L52
Cerulean Cave 2F								10% L56
Cerulean Cave B1F										5% L57
Mt. Moon 1F	5% L10					5% L10
Mt. Moon 2F	5% L10
Route 23				5% L44						5% L41
Route 26	20% L28 +10% L28				+30% L28 +30% L28	+30% L28 +30% L28 +30% L28
Route 27	5% L30					+5% L30 +5% L30 +5% L30
Victory Road 1F				5% L44
Victory Road 1F					+5% L35 +5% L35
Victory Road 2F				5% L46
Victory Road 2F					+5% L35 +5% L35
Victory Road 3F					+5% L35 +5% L35
Victory Road 3F				5% L44

Sinnoh

	Platinum	Diamond	Pearl
Walking in tall grass or a cave
Route 228	+8% L49–50	+8% L23	+8% L23

Unova

	Black 2	White 2	Black	White
Walking in tall grass or a cave
Relic Castle c	20% L28–29	20% L28–29	30% L47–49	30% L47–49
Route 15	30% L54–56	30% L54–56
	Black 2	White 2	Black	White
Walking in dark grass
Route 15	30% L62–64	30% L62–64

Kalos

	X	Y
Walking in tall grass or a cave
Route 18	10% L46	10% L46
Terminus Cave Unknown Area 343	20% L45–46	20% L45–46
Terminus Cave Unknown Area 344	20% L45–46	20% L45–46
Terminus Cave Unknown Area 345	20% L45–46	20% L45–46
Terminus Cave Unknown Area 347	20% L45–46	20% L45–46
Terminus Cave Unknown Area 348	20% L45–46	20% L45–46
	X	Y
Walking in red flowers
Route 18	20% L44–45	20% L44–45