Tips for Ulvosa Double Ceiling Block Room
It’s very sneaky. You have to enter from the right side. In that area you’ll see a bunch of blocks that dissolve. You need to slide to the right off the top set (I believe) before they dissolve. You can hover in the air and they’ll reappear.
The entrance is in the NW room below the tile with the red bunny potion. You’ll see two sets of dissolvable blocks in a row. Dissolve the top row and stand on the edge of the platform. Throw a bomb and it’ll open a hole in the middle of the wall.
You can also drop a bomb from the top of the dissolving rocks (edge) so it falls on the right most lower dissolving rock.