It's probably a bad sign if, as the developer, you can't beat the medium difficulty! The game is very hard. Sometimes, the asteroids feel unavoidable. I also got stuck several times at the edge of the map since there was nothing I could use my grapple on. You probably should teleport the character next to an asteroid so that they don't get stuck there. I still managed to beat the medium difficulty, but I think the character should have more hp to make the game more accessible. It was a fun game :)