This is an incredibly polished platformer in terms of the controls and movement. I made my first ever platformer in the last jam and was struck by how tricky it was to get things like jumping working.
and yet here you have got jumping and the grappling action down. Very impressive!
Music and graphics fit well with the whole genre and this is a solid entry. If there was one downside it was the lack of audio feedback when you collect items. But that's a minor complaint