Each section has a 1/3 chance of working, assuming all other inputs are done correctly, because the blocks follow a 3 frame cycle.
The first trick involves hitting the ceiling, falling as far as possible into the block, gaining a jump when the block appears, and 3 frames later, using the jump to downwarp when the block reappears.
The second trick is simple, you can just fly through the gap with enough speed.
The third trick involves crouch jumping as high as possible into the block to get a jump, keeping crouch held until the block disappears to avoid an instant downwarp, and then jumping up through the gap in the 2 frames remaining to get high enough to warp up normally.