To photograph a Charizard, throw an apple at the Charmeleon by the lava pool near the end of the volcanic level. If you knock him in the lava he will evolve into a Charizard.
In the Cave there are two grimers. Take lots of pictures of them. When the third appears near the three bulbasaurs, take a picture. Now throw lots of pester balls at him. He will evolve into Muk.
Group of Charmanders
In the volcano level, the Moltres egg will stop your vehicle. You can sit here as long as you want. Throw an apple near a Charmander, and it will tell all it's buddies there's food to be had. Throw food at the other one and he'll call even more. You can get up to six Charmanders, and you can lure them closer with the pokemon food. To get them to hold still and look straight at you for an AWESOME picture, play the Poke Flute.
How to hit the River Switch
At the beginning of the level, throw pesterballs at the squirtles to make them leave the river. Further down the river you'll find the squirtles sunning themselves at the base of a steep hill. At the top is a mankey. As you pass the squirtles, throw pesterballs at them, causing them to roll up the hill. If your timing is right, the mankey will fall down and land near the switch. As you approach the switch, throw another pesterball at the mankey, knocking him backwards onto the switch.
Each of the three birds will be in an egg.
The first Mythical bird is Moltres (he is in the Volcano level), he will be easy to find since his egg is blocking your path. all you have to do is hit the egg with pokemon food or pester balls and a moltres will emerge from the hot lava
To get Zapdos you must lure pikachu to the egg sitting in the tunnel then play a pokeflute. If you did it right pikachu will hit the egg and he will shoot the egg out and the egg will blow up revealing Zapdos.
Articuno: Play your Pokeflute when you see the Jynx and the egg.
It seems everyone's favorite Pokemon is just looking for a photo op. Here's some locations for some very special photographs.
To see Pikachu rolling on a ball go to the Tunnel. When you start the stage take pictures of the Pikachu immediately. He should move farther down. Keep taking his picture. He will stop and jump on a rolling Electrode.
To see Speed Pikachu go to the River. At the very end on your left you should see Pikachu hiding behind a tree. Throw an apple at Pikachu and it should fall down. Then he will run back and forth as the Speed Pikachu.
To see Pikachu surfing go to the Beach. Throw apples at the first Pikachu you see. Throw the apples on the right side of your tracks. There will be a surf board there so try to lead him there. If you do it right he will surf.
To see Pikachu on a stump go to the Beach stage. The first time you see Meowth chasing a pidgey out of the long grass, throw pester balls into the long grass to get Scyther. After you get Scyther, 2 Pikachus should come out to the stump on your left side. Lead them with apples and play the poke flute.
In the cave, towards the end, you will see a zubat carrying Pkachu. Hit the zubat with apples and pesterballs until he drops Pikachu. Pikachu will sprout balloons and fly away.
Save Pikachu from the Zubat in the Cave and awaken Articuno from his egg by playing the Pokeflute. When you get to the end of the level next to where Jigglypuff's stage is, turn around and you'll see Pikachu riding on Articuno.
Rainbow Cloud Stage
To get to the secret level (Level #7 The Rainbow Cloud Stage) take pictures of these following landmarks on all of the 6 stages:
Stage#1 - The Kingler rock formation is on the left after you pass Pikachu's surfboard.
Stage#2 - The Pinsir shadow will appear some time after you release the Zapdos from the beginning of the level. You will see the Pinser shadow on the right after you pass the second Electabuzz.
Stage#3 - The Koffing cloud appears on the left at the very beginning of the level. Look for a volcano with purple smoke coming out of it. Toss a few pester balls into the volcano until a face appears.
Stage#4 - The Cubone rock formation will be above the Vileplume you see (to see the Vileplume play the Pokeflute in front of a large purple bag you see near the beginning of the level.)
Stage#5 - Mewtwo's energy form will appear on the left soon after you see the Weepinbell.
Stage#6 - The Dugtrio Rocks are right in front of you when you start the level.
Save the Jigglypuff
On Level 5 there will be a koffing chasing a jigglypuff in three different spots. Throw pokemon food or pester balls at the koffing to make them stop. If you free all 3 jigglypuff they will sing for you at the end of the level.