He was asking about game modes. It's time attack - after getting

in Dojo, you start getting

and three more items for the quest. After completing, you can play ninjutsu mode, in every level you'll get

. Get 100 of those and you'll be able to play time attack.
Another is two player mode, unblocked after completing Sandy's adventure begins! (finding

and

)
Next time, please use asking thread.