I feel like this actually needs a walkthrough. I'm completely stuck, and have no idea how to progress. I've been able to get all of the crystals except the one under the waterfall so far, and my progress is now completely blocked in the area just past all the tentacles. I jump on the mushrooms, kill the eggbug males and.... Then where?
There's a gap in the wall to the right, but try as I might I can't get through it. Tried a mushroom jump, nope, not high enough. Tried getting one of the eggbugs to yeet me through it, nope, I hit the wall above. As far as I can tell there's no other way through...
The only thing I can think is that I need to be an eggbug female to fly through, but I just tried to do that and the closest area you can become an eggbug female is before the tentacle room before the eggbug female room. The tentacles are impassable without destroying them, so...