Gravity Jump up to the top with HiJump. It is possible to jump up without HiJump with a precise jump and equipping Spring Ball and Gravity at the peak of the jump.

Requires:

"canGravityJump"
{
  "or": [
    "HiJump",
    {
      "and": [
        "canSpringBallJumpMidAir",
        "canTrickyJump"
      ]
    }
  ]
}