Requires:

"Gravity"
{
  "or": [
    "SpaceJump",
    "canWalljump",
    "h_IBJFromSpikes",
    {
      "and": [
        "h_canIBJ",
        "h_canHBJ"
      ]
    },
    "h_canDiagonalBombJump"
  ]
}