(This movie uses the Japanese ROM. If you have the same USA rom as the released TAS uses, it will sync up to this point)
Good news! we can use the WhiteHat94 zipping method (take dmg and jump on the pogo stick at the same time an enemy squeezes us inside a wall) where the original method (just stand and wait for an enemy to squeeze us).
The height difference is not enough to just zip through any ground, but we can skip under between walls.