Use the spikes, which are not in the water, to jump from platform to platform as a way to cross the Colosseum. Requires knowing the position of every spike in the room, and hitting the spikes while morphed can help. The first jump is particularly tough. A springball rolling jump can be used to get past it.

Entrance condition:

{
  "comeInRunning": {
    "minTiles": 2,
    "speedBooster": "any"
  }
}

Requires:

{
  "notable": "Spike Platforming with SpringBall (Left to Right)"
}
"canWalljump"
"Morph"
"canCarefulJump"
"canIframeSpikeJump"
"h_canUseSpringBall"
"canMockball"
{
  "spikeHits": 3
}
{
  "or": [
    {
      "spikeHits": 1
    },
    "canHorizontalDamageBoost"
  ]
}