Start an IBJ by either bouncing on the sand with SpringBall, doing a stationary spinjump on the sand, Or by crouch jumping in the sand while holding down.

Requires:

"Gravity"
"canLongIBJ"
"canJumpIntoIBJ"
{
  "or": [
    {
      "and": [
        "canTrickyJump",
        "can4HighMidAirMorph",
        "canPlayInSand"
      ]
    },
    "h_useSpringBall"
  ]
}
{
  "or": [
    "canDoubleBombJump",
    "canStaggeredIBJ",
    "canBePatient"
  ]
}