Nintendo recently filed a trademark for software called "Great Detective Pikachu," according to a filing in Japan's international property database.
The trademark, pointed out by Pokemon enthusiast site Serebii, alludes to a video game. The filing follows The Pokemon Company's recent unveiling of an in-development Pokemon title matching the details of the trademark.
In early October, president of The Pokemon Company Tsunekazu Ishihara told Japanese television show NHK that a new Pokemon game starring Pikachu was in the pipeline.
Last week the company revealed the new title is a detective game for the Nintendo 3DS in which players will team up with Pikachu to solve crimes and defeat an evil blue version of the Pokemon. The game utilizes the 3DS' camera and allows Pikachu to register — and mimic — players' facial expressions. Ishihara said work on the title began this summer and the game is expected to launch in 2015.