Cute and fun; But boring fast

I love the graphics. The ninjas cute, the water looks good and I love the springing idea! That said though, Ive had the game for several months and it could really use some sort of reward or upgrade. My husband who is in the gaming profession was bored after maybe 15 minutes. Perhaps were just not the target demographic for this game. Ill say again that I did enjoy the challenge initially; I just think it needs a boost of some kind.

EhCaptaim about Spring Ninja