Originally Posted by gunnels

I barely remember this, so I'm gonna need some help identifying this game.
This game is very japanese, you play as this ninja esque kid. At one point in the game you climb a mountain and at the top you get this item similar to the hookshot from Zelda.
I also remember at one point using a mech...

I remember renting this game and loving it, but I can't remember the bloody name.