Break the tunnel block with a Bomb and then return to safety. Break the runway block on the next cycle. SpringBall helps avoid acid damage. Bombing Samus up through the runway with a second Bomb can help, or it can trap Samus in the acid if liquid physics take effect.

Requires:

"h_useMorphBombs",
{"or": [
  "h_useSpringBall",
  {"acidFrames": 10}
]},
{"or": [
  "canInsaneJump",
  {"and": [
    "canTrickyJump",
    {"acidFrames": 10}
  ]},
  {"and": [
    "canCarefulJump",
    {"acidFrames": 120}
  ]},
  {"acidFrames": 200}
]}

Dev note: Damageless is possible without SpringBall but it is very likely you end up taking more damage by attempting it.