|Post Crocomire Farming Room||Adjacent rooms|
After Crocomire dies, runners will typically charge a shinespark and attempt to spark through the left door, in order to reach Post Crocomire Power Bomb Room the fastest possible way. This is helped by a wrap-around shot to open the left-side door while picking up the Energy Tank on the right side of the room.
If you're doing late Crocomire, you can charge a Spike Suit on the spikes to the left of Crocomire, and then hold it until Red Brinstar Fireflea Room, so that you can get to X-Ray Scope Room faster. This video demonstrates the reveal of this technique.