I found 2nd way to do it. Have rhinoroller in your pocket and use TK to climb up. When the L part comes, try to hover and quickly try to forward to the L and it will go up by itself. I dunno how to explain. The character must not look to the left, but when you fly away, you come a bit to your way (Like character is coming at you) and when you're near the L, you try to push it and it will go up. (Push as you press up) So you push the L in ↑ way.
Sorry if its hard to explain, I drew how I meant it.
I think it's a small glitch as usually it shouldnt lwet you to "hover up" itself :P. Takes a bit of practise but you'll get up eventually and no need for the 2nd controller.