Character from Undertale / Deltarune by Toby Fox
The court jester who went mad and decided everyone else was imprisoned while he alone was free — I CAN DO ANYTHING!
Jevil was the Card Kingdom's court jester until he met a 'strange someone' who told him the truth about the world. The truth drove him mad — or freed him, depending on perspective. He now believes he is the only free being in existence and everyone else is trapped in a game. Given that this IS a game, he might be right. 'I CAN DO ANYTHING!' is his catchphrase and his philosophy. His boss fight is a carnival of chaos — spade bullets, spiral patterns, carousel imagery, scythe attacks. He is the first secret boss in Deltarune and establishes the pattern: secret bosses are characters who learned too much about the nature of reality and broke. His cell beneath Card Castle is a choice — Seam imprisoned him, but Jevil considers the cell freedom because everywhere else is a cage. Defeating him yields a Shadow Crystal, one of the game's mysterious artifacts. His relationship with Seam mirrors his relationship with sanity — former partners, now separated by a gulf of understanding that cannot be bridged.
A short, pudgy imp with a round gray face, elven ears, yellow pupils in black sclerae, and a purple J-shaped tail. Wears a purple jester outfit with a harlequin hat adorned with yellow bells. His head connects to his body via a coil spring like a jack-in-the-box that stretches when damaged. His grin is permanent and unsettling.
Also known as: The World Revolving