Press L, R while watching the television to cycle through the channels and advance to the next segment on the first channel you watched.

Press L (rewind) or R (fast forward) during a a Pichu Bros. scene that you have not seen before.

Collect 101 different Nice Cards to unlock all three versions of the nine Pikachu Nice Cards.

Look in the crates after Day 6 to find the complete English and Japanese Pichu Bros. movies.

Find Togepi on Day 6 to get the Hosted by Kasumi Disc. Also, after getting the Hosted By Kasumi Disc, look for Celebi. Answer his question correctly and receive his Nice Card. Then, watch the Hosted By Kasumi Disc (if not already done), then save it. Professor Oak will then say your schedule for new programs tomorrow.

Get all five episodes of Pichu Bros. Party Panic.

Play Pokemon Channel on Day 2 to get Pichu Bros. Episode 2.

Play Pokemon Channel on Day 3 to get Pichu Bros. Episode 3.

Play Pokemon Channel on Day 4 to get Pichu Bros. Episode 4.

Look in the Ruins Of Truth to find Pichu Bros. Episode 5.

Collect 50 different Nice Cards to receive the Prime Binder.

Collect 25 different Nice Cards to receive the Prime Binder.

Instead of waiting for packages to arrive or for the next day, change the internal clock on your Gamecube to the time that you want in the game.

To get free nice cards, just go outside and chat with another Pokemon. They will ask you a question. If you answer correctly, they will give you a Free Nice card. The Nice cards are the Pokemon who asked you the question. For example, if you answered a question correctly from a Mr. Mime, you will get a Mr. Mime card.

You can get quick money by watching Quiz Wobbefet. Wait for the Present Quiz, then answer quickly and correctly to get 50 to 200 P.

On Shop 'n Squirtle, press R then L to skip sections. The order is as follows:

Intro
L R
First Item
L R
Secound item
L R
Third item
L R
"How did you like our show?"
L R
Intro again
L R
etc.

When you do this, wait until the screen turns black after the channel scroller, then press R, L. On Quiz Wobbefet, the order is as follows:

Intro
L R
Contestants
L R
Question 1
L R
Question 2
L R
Question 3
Present quiz
L R
Question 4
L R
Question 5
L R
Question 6
Present quiz
L R
Ending
L R
Intro
L R
etc.