I struggled with this one. Eye-catching cover image drew me in, but I couldn't quite get the mechanics right to make him swing. It felt like he always swung into the ground because the grappling line was too long.
Aw, well thanks for giving it a try! If you jump and aim closer to the character, you can set the grapple to a length that'll let you swing well. But a lot of folks are saying it takes some getting used to, so feedback I'll take to the next game!