Frog Speedway

Frog Savestation	Adjacent rooms	Upper Norfair Farming Room

Randomizer

sniq released this video showing that it's possible to traverse this room right-to-left without Speed Booster. Fire angled shots at the ceiling while holding left against the first Speed Booster block, and you can simply walk through. The combination of Wave Beam and Spazer works well, although Wave Beam and Plasma Beam will also work.

The current theory is that this works because 8x1 rooms have odd properties that allow these shots to cause the inbounds ceiling to trigger respawning PLMs. After all of the available slots for the respawning blocks are used up, Samus won't interact with other blocks until those blocks start respawning.