Press It & See

Press It And See is a Fairy-Type Innocent Devil ability in Castlevania: Curse of Darkness. It can be learned by a Proboscis Fairy by defeating a certain amount of enemies while this I.D. is summoned. It activates automatically once the player reaches the place where it's used at. Costs 0 MP upon activation but renders the fairy unconscious after use.

Description
This ability only has one purpose in the entire game, but it doesn't mean it's not an important one. With the Proboscis Fairy summoned and once Hector arrives to a certain room in Aiolon Ruins with a barely visible switch near the top (three rooms after the second Save Room), the fairy will fly toward it and a humorous cutscene will play, where just out of pure curiosity he dares to press it, unknowingly releasing a giant bomb which knocks down the whole wall (and himself with it). The I.D. will be considered as having "died" afterward, so Hector should switch to another one from his deck.

Destroying this wall gives access to a whole new complex of corridors with three rooms. The following treasures can be found in them:
 * Comedian's Chair
 * Director's Chair
 * Orichalcum (ATK Up for Trevor)
 * Megingelos (Potion for Trevor)
 * XS Potion (Potion for Trevor)

Trivia

 * The in-game's description for this ability only reads: "???", leaving the player with the task of discovering what it's used for.
 * The term "press it and see", is a nod to a phrase the Devil Familiar says in Castlevania: Symphony of the Night, where he also has the ability to press a button out of the player's reach: "Hmm... a switch. Why don't I press it and see?"
 * The big bomb the Proboscis Fairy sets, appears to be a nod to another big bomb the player can encounter in Stage 4 of Castlevania: Rondo of Blood, and which also destroys a big wall to give access to a whole new area in the same level.