Use X-mode to gain a shinecharge near the Chozo statue. Jump onto the Chozo statue, press against the wall, and shinespark into it to clip in, then X-Ray climb up.

A second spike hit can be avoided by holding an angle button to turn around while in X-mode; arm pump to move out of the spikes before activating the shinecharge and exiting X-mode.

Requires:

"canXMode",
"h_XModeSpikeHit",
"h_shinechargeMaxRunway",
"canShinechargeMovement",
{"shinespark": {"frames": 1, "excessFrames": 1}},
"canShinesparkSlopeClip",
"canXRayClimb",
{"or": [
  {"getBlueSpeed": {"usedTiles": 16, "steepDownTiles": 4, "openEnd": 0}},
  "can4HighMidAirMorph"
]}

Exit condition:

"leaveNormally": {}

Unlocks doors:

{"types": ["ammo"], "requires": []}

Dev note: The leaveNormally is to ensure it won't be required to do the Speed block moondance blind up there.