L the Prologue to Death Note -Spiraling Trap-

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L the Prologue to Death Note -Spiraling Trap- was released for the Nintendo DS in Japan on February 7, 2008. The player assumes the role of a rookie FBI agent who awakens in a strange hotel and attempts to escape with the help of L, who provides assistance via an in-game PDA. The story is set before the Kira investigation in the original series.

Source: IGDB