Renji
Collect 50 cards. 

Renji's story
Collect 70 cards. 

Blockon multi-player mode
Collect all 134 cards. 

New items
Every time you buy ten cards you will get some thing different. 

Gallery mode
Collect 20 cards. 

Sound mode
Collect 10 cards. 

Mini-game
Collect 100 cards.