Potions

Potions (also known as Devil's brews in The Black Sanctum) are items that first appear in The Blue Ballroom, and again in The Black Sanctum. When Hector touches a potion, his control scheme changes. Potions come in three varieties: pink, red, and blue. Pink potions (known as Confuse Potion) will reverse the arrow keys. These potions often appear near areas that contains narrow paths surround by the Void. Red potions (known as Motion Potion) will make Hector continuously move in a single direction, regardless of any new input afterwards, until he hits a wall. These potions often appear near areas that contain blocks. Blue potions will remove the effects from every other potion Hector had picked up before.

Trivia
There is a Motion Potion hidden behind the gate in the Last level of the The Black Sanctum "Nevermore", as its sound effect can be heard after the player go thought it.