Becomes a very difficult room with this strat set, but can be more managable with these cues.
Neutral wallbounce into the room, right dash onto the cloud and start a left dash.
For keyboard players: start the left dash while holding right. Let go of left, and jump twice immediately to hyper bhop to the grab block.

Wallbounce in between the blue lines and start the turnaround after passing the red line.
These can be visualized by the edge of the grab block and the hole in the bg texture, respectively.
After dashing left with the bubble, stay neutral to tap jump off the spiked block, upleft demo immediately and wallkick.