Ninja Bike Stunts

How does the game Ninja Bike Stunts work?

This professional ninja sneaked into the enemy temple by means of the roof and is now stealthily racing through it on his powerful motorbike. In it, he'll find golden six-inch shurikens that'll help him defend himself, as long as he doesn't fall into the abyss when taking a dangerous jump while performing the best ninjutsu arts.