Green Brinstar Main Shaft
|Elevator to Lower Mushrooms|
|Brinstar Pre-Map Room
Green Brinstar Fireflea Room
Green Brinstar Beetom Room
|Adjacent rooms||Early Supers Room
As you come off of the elevator platform, move left to hug the right edge of the platform, then fire two beam shots down to kill the first Zeela.
For Any% PRKD, you should kill the second Zeela, then collect both missile drops (since this route has you entering this room with full health and at least one missile). If you entered the room with 2 missiles you can use one on the second Zeela, otherwise you'll need to kill it with beam shots.
For Any% KPDR, you can move left then right around the Ripper to the door to Early Supers Room, or you could stop briefly on the platform before falling down further, which will allow you to collect the Zeela's drop.
Coming out of the Early Supers Room into Dachora Room, you want to do a small jump, as this will allow you to start falling faster than simply running off the ledge (though simply running off and then moving a little bit more left after bonking the overhang is a good strategy for a beginner to avoid the Ripper).
After you Super the door, most runners will run through it and jump into a mockball in the next room. However, to align the door, some runners will jump through the door transition, then do a kago mockball through the first Zeela in the next room.
A commonly missed map tile is the morph tunnel near the bottom of the Etecoon Room.