Aqua people keep jumping
While on the Lesser Celestial River, you will come across aqua people that jump out of the water and attack you. If you use Escape while fighting, the aqua people will just keep jumping in and out of the water.
Turn off Battle Window
During battles with enemies, you will notice that annoying window that pops up after each attack, by you or the enemy. This can pull you out of the experience a lot. To turn this off, press Y to open the menu (when not in battle), go down to "System" and the second BTL selection. Choose "Popup" to make it so only the damage numbers will appear above the enemies heads, like Final Fantasy.
Unlock Namco Character Magnus 1: Pac-Man
Combine the following cards: Cherry+Strawberry+Orange+Apple+Melon= PAC MAN
Unlock Namco Character Magnus 2: Pac Land Pac-Man
After enough time, Pac-Man (normal) will turn to his appearance circa Pac Land.
Unlock Namco Character Magnus 3: Pac Mania Pac-Man
After enough time, Pac Land Pac-Man will turn to Pac Mania Pac Man.
Unlock Namco Character Magnus 4: Momotaro (Peach Boy)
Keep a Momo (Peach) magnus long enough and it will evolve into Momotaro.
Unlock Namco Character Magnus 5: Wonder Momo
Keep a Momotaro magnus long enough and it will evolve into Wonder Momo.