Breaking the bomb blocks is difficult because there is not enough space above them to get a neutral bounce. It is best to break them by jumping from the top platform (inside the 3-tile-high space), as this provides a 2-frame window for the morph; in comparison, jumping from the platform below requires a frame-perfect morph. If Spring Ball is available, it can be used to increase the window by one frame.

Entrance condition:

{
  "comeInWithTemporaryBlue": {
    "direction": "right"
  },
  "comesThroughToilet": "any"
}

Requires:

"canChainTemporaryBlue"
"canInsaneJump"