Instructions
Attack enemies around the tower with punching, kicking and clawing moves. Though this is not absolutely necessary, the enemies could potentially knock you off the ladder as you attempt to get up into the tower.
Move Wolverine directly in front of the ladder at the base of the tower.
Push forward on the directional stick. Wolverine begins to climb the ladder. Keep the direction stick pushed forward until he gets off of the ladder at the top of the tower.