Hazard warp

When the knight touches a hazard (e.g. spikes or acid), they respawn at a safe spot. This can sometimes be used to perform a hazard warp.

Queen's Gardens
In older patches it is possible to touch a hazard respawn zone which extends too far up by dying on a specific spot in the thorns. This saves a few seconds.

Kingdom's Edge
The True Ending category uses a hazard respawn to pass a lake of acid.