Many times in this game, little Pikachu will do something extra special and cute! Here is a list of what you can get it to do.
Surfing Pikachu: On the Beach level, near the beginning, you'll see a Pikachu. Throw apples leading to the surfboard (a little further ahead) and if you do it right, Pikachu will jump on it and pretend to surf!
Pikachu(s) sitting on a tree stump(s):In one of the bushes on the Beach level, (the one where a Meowth jumps out catching a pidgey) Throw lots and lots of Pester balls into the same bush. If you do it in the same place, a Scyther should jump out. This will make 1 or 2 Pikachus run out and jump up onto the 2 tree stumps next to the bush. To get more points, play the Pokeflute!
Super speed Pikachu:This one is in the River level. Near the end of it, you'll see a log with lots of holes in it. Pikachu should be on it somewhere, so take a picture of it and it should run out with sparkly things trailing behind it. Quickly take a piccie to get Super speed Pikachu!
Pikachu flying on Balloons:This is probably the hardest one to do, but worth it! In the room with Articunos egg (Cave level) look up and you should see a Zubat with Pikachu hostage. Fire at it like crazy, and if you managed to hit it, Pikachu should fly down on balloons. Take a piccie and tada!
Articuno airways! (Pikachu riding on Articunos back):This one is also in the cave level. If you managed to free Pikachu from Zubat, it will land from the balloons and run over to the Jynx's. Quickly play the PokeFlute to get Articuno out of the egg. Keep facing backwards, and Pikachu/Articuno should fly up to you! Try your best to get Pikachu in the middle of the screen, because if its Articuno in the middle, you wont get as many points.
Circus Pikachu(on a ball)
n the tunnel level, quickly take a picture of the first Pikachu you see. It should run, and then stop. Take another pic, and it should jump up onto an Electrode! Take some more photos to get more points.