Either use a long chain of controlled, short spring ball bounces to make it past the crumbles without touching the spikes, or simply hold jump and forward and take 7 spike hits.

Requires:

"h_useSpringBall",
{"or": [
  {"tech": "canTrickySpringBallBounce"},
  {"spikeHits": 7}
]}

Dev note: This is a dashless strat.