Incantation is a somewhat ill-known SNES game, as it was released in late 1996 and is a fairly basic platformer.
Cheat Menu#
On the title screen, press R, L, L, R, R, R, L, L, L, L, Up, Down, Up, Down. The screen will blink a few times upon correct entry. Afterward, start the game and press X to open the menu.
You can skip levels by pressing either L or R, choosing the level you want to go to, and pressing Select.
(Source: KungFuFurby, JLukas)