Hint: Pac-Man
Pac-Man: Combine the cherry, strawberry, orange, apple, and melon cards. Eventually Pac-Man will change his appearance to Pac Land and Pac Mania versions.
Hint: 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.