Requires:

"Gravity"
{
  "or": [
    "canWalljump",
    "SpaceJump",
    "canLongIBJ",
    "canJumpIntoIBJ",
    "SpeedBooster",
    "Grapple",
    {
      "and": [
        "HiJump",
        "canSpringBallJumpMidAir"
      ]
    },
    {
      "and": [
        "HiJump",
        "canUseEnemies"
      ]
    }
  ]
}

Dev note: A very precise CrouchJumpDownGrab, or springball jumping to the snail is closer to canSnailClimb.