Viridian Forest

	HeartGold	SoulSilver	Yellow	Red	Blue
Walking in tall grass or a cave
Beedrill		+10% L7
Budew	+20% L3	+20% L3
Butterfree	+10% L7
Carnivine	+20% L5	+20% L5
Caterpie	+40% L3 +40% L3		50% L3–6	5% L3	45% L3–5
Hoothoot	+40% L3 +40% L3–5	+40% L3 +40% L3–5
Kakuna		+30% L3–5 +30% L3–5		40% L4–6	5% L4
Kricketot	+40% L3	+40% L3
Metapod	+30% L3–5 +30% L3–5		25% L4–6	5% L4	40% L4–6
Noctowl	+15% L7	+15% L7
Numel	+20% L5	+20% L5
Pidgeotto	+4% L7 +9% L7	+4% L7 +9% L7	1% L9
Pidgey	+5% L7 +10% L3 +10% L3	+5% L7 +10% L3 +10% L3	24% L4–8
Pikachu	5% L4 +1% L7 +1% L7	5% L4 +1% L7 +1% L7		5% L3–5	5% L3–5
Spoink	+20% L3	+20% L3
Weedle		+40% L3 +40% L3		45% L3–5	5% L3

	FireRed	LeafGreen
Walking in tall grass or a cave
Caterpie	40% L3–5	40% L3–5
Kakuna	10% L4–6	5% L5
Metapod	5% L5	10% L4–6
Pikachu	5% L3–5	5% L3–5
Weedle	40% L3–5	40% L3–5