Route 31

Johto

	HeartGold	SoulSilver	Crystal	Gold	Silver
Walking in tall grass or a cave
Caterpie	+25% L4–5 +25% L4–5 +10% L4 +10% L4		+50% L4–5 +50% L4–5	+35% L4–5 +35% L4–5
Metapod	+15% L5 +15% L5			+15% L5 +15% L5–6
Weedle		+20% L4 +25% L4–5 +10% L4 +10% L4	+5% L4 +5% L4		+30% L4 +35% L4–5
Kakuna		+10% L5 +15% L5			+10% L5 +15% L5–6
Pidgey	+20% L3 +20% L3 +10% L3 +10% L3	+10% L5 +20% L4 +10% L4	+10% L5 +40% L4–5	+30% L3 +30% L3	+10% L5 +30% L3
Rattata	+30% L4–5 +10% L4	+30% L4–5 +10% L4		+40% L4–5	+40% L4–5
Zubat			+5% L4
Poliwag			+30% L4
Bellsprout	+20% L3	+20% L3	+20% L5	+20% L3 +20% L3 +20% L3	+20% L3 +20% L3 +20% L3
Gastly			+5% L5
Hoothoot	+10% L5	+30% L4–5 +10% L4	+10% L5	+10% L5	+40% L3–5
Ledyba		+20% L4 +10% L4	+30% L4		+30% L4
Spinarak	+20% L3 +10% L3		+30% L4	+30% L4
Hoppip			+5% L5 +5% L5
Linoone	+20% L3	+20% L3
Whismur	+20% L3–4	+20% L4
Bidoof	+20% L3	+20% L3
Buizel	+20% L3–4	+20% L4
	HeartGold	SoulSilver	Crystal	Gold	Silver
Fishing with an Old Rod
Poliwag	15% L10	15% L10	15% L10	15% L10	15% L10
Magikarp	85% L10	85% L10	85% L10	85% L10	85% L10
	HeartGold	SoulSilver	Crystal	Gold	Silver
Fishing with a Good Rod
Poliwag	60% L20	60% L20	65% L20	65% L20	65% L20
Magikarp	40% L20	40% L20	35% L20	35% L20	35% L20
	HeartGold	SoulSilver	Crystal	Gold	Silver
Fishing with a Super Rod
Poliwag	80% L40	80% L40	80% L40	80% L40	80% L40
Magikarp	20% L40	20% L40	20% L40	20% L40	20% L40
	HeartGold	SoulSilver	Crystal	Gold	Silver
Surfing
Poliwag	90% L10–25	90% L10–25	90% L15–24	90% L15–24	90% L15–24
Poliwhirl	10% L15–32	10% L15–32	10% L20–24	10% L20–24	10% L20–24