I didn’t use any tricks but Spoiler i didn’t use L. I moved L to one of the two rotatables that does not sit above the grass then ignored L and these two rotatables
Very nice symmetrical design & maybe symmetrical gameplay? (specially the upper one) thank you @Memorama 13
Even though B had to hold his breath underwater for quite a while, the level was still enjoyable for him. Nicely put together level.