2-2 Abyss of Agony

Stage 1 switches skip

Skip all switches and their cutscenes by using the Water Rod to go over the barricade to the Triforce gate.

With Torrent Robe:
For each pillar placement starting at the barricade, place the pillars while stationary and facing toward the same angles as shown in the video:

Costumeless:
Place the pillars as shown in the video. To place the pillar within the barricade at 0:36, use dash cancel recovery extension.

Stage 3 respawn manipulation

Using respawn manipulation, skip most of the switches and zigzagging by getting a player at the top platform with the second waterwheel.
This strategy uses a minimum of 3 hearts.

With Torrent Robe:

Costumeless: