Use a 3-tap or 4-tap to gain a speedball with a specific amount of speed in the other room (between $2.1 and $2.3 extra run speed), and either roll in or do a controlled bounce to enter while descending close to the ground. Cross the room by bouncing on the pillars. Then chain temporary blue into the next room.

Entrance condition:

{
  "comeInWithBlueSpringBallBounce": {
    "movementType": "controlled",
    "minExtraRunSpeed": "$2.1",
    "maxExtraRunSpeed": "$2.3"
  }
}

Requires:

{
  "notable": "Cross-Room Blue Spring Ball Bounce (Left to Right)"
}
"canTrickyDashJump"
"canTrickySpringBallBounce"
"canInsaneJump"
"canChainTemporaryBlue"
"canBeVeryPatient"

Exit condition:

{
  "leaveWithTemporaryBlue": {}
}

Unlocks doors:

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

Dev note: The 'canBeVeryPatient' requirement is for difficulty placement as this is quite precise and unforgiving.