Power Plant

	Yellow	Red	Blue
Walking in tall grass or a cave
Electabuzz		5% L33–36
Grimer	15% L33–37
Magnemite	40% L30–35	30% L21–23	30% L21–23
Magneton	20% L33–38	10% L32–35	10% L32–35
Muk	5% L33–37
Pikachu		25% L20–24	25% L20–24
Raichu			5% L33–36
Voltorb	20% L33–37	30% L21–23	30% L21–23

	FireRed	LeafGreen
Walking in tall grass or a cave
Electabuzz	5% L32–35
Magnemite	30% L22–25	30% L22–25
Magneton	10% L31–34	15% L31–34
Pikachu	25% L22–26	25% L22–26
Voltorb	30% L22–25	30% L22–25