|Phendrana Drifts - After Research Lab escape|
The closest place to use my super missiles is that east door in Ruined Courtyard.
The Phazon radiation given off by Thardus negates auto-targeting systems, preventing lock-on. It may be possible to acquire alternate targets with a different Visor. The chaotic nature of Phazon irradiation leads to instability in its structural integrity. Thardus can encase targets in ice, and its colossal size and strength make it a formidable opponent.
Got the Spider Ball.
Magmoor Caverns South
Other than that, there's 2 other doors to the north and south. I guess north would eventually lead up towards the Tallon elevator, so I probably want to try south first...
The north door leads to another very easy linear lava platforming path.
Pretty sure there's no reason to re-explore Tallon Overworld again just yet, but I'll pass through there on my way to Chozo Ruins cuz I know there's at least a couple things there I can do now with the Spider Ball.