Jump and mid-air morph off a crumble block to begin the IBJ. Use double bomb jumps to make it up quickly before the shot block respawns.

Requires:

{"obstaclesCleared": ["B"]},
"canCrumbleJump",
"canInsaneJump",
"canJumpIntoIBJ",
"canDoubleBombJump",
{"heatFrames": 360}

Dev note: This is likely to only be useful if the in-room item is Bombs, and Samus had to break the blocks with a Power Bomb to get to it.