Umihara Kawase: Shun

In this slightly out of the ordinary platformer you play as a girl equipped with a fishing (and grappling) hook and a backpack, who has to maneuver her way through an aquatic world and fight off the mutated sea creatures within it.

In a somewhat similar manner to Bionic Commando the player has to use a lot of planning and his grappling hook to get around the stages in a successful way. There are no power ups in the game, so skill is of the essence.