Definitely a really hard one and it took me quite a while before I managed to solve it. However, I think I'm in agreement with Armani that Icho's R2 is only a tid bit harder than yours. Here, I was a dummy for a long time and kept thinking the sliders need to go through the top right area

The solution isn't that fiddly at all. I absolutely love the trick of bombing where the thin steel area near the top is in order to get the sliders up near the left exit, though!

Even after I managed to figure this out, I kept coming up a skill short. Eventually, I found the solution in the replay. I checked mine against Icho's solution, and it's almost the same, except I didn't build the sliders out at the bottom left, I used a bomber. I also had the climbers go out through the OWW area instead of relied on the sliders to let the climbers out and hence didn't need the timing there.
Overall, nice level here, although certainly quite difficult for far too many here. I don't mind hard levels, as you probably already know
