Sales of the Brain Training series have surpassed the million mark in Japan so it isn’t a surprise that other companies are jumping into the action. Hudson has three titles in their newly created puzzle series set for a release on March 23rd at a budget price of 2,940円 ($25). The first game is a touch screen jigsaw puzzle. You can drag puzzle pieces with the stylus into place and race against the clock for a challenge. The crossword puzzle game has a neat feature, it lets you write kana using the stylus. The last entry in the series is the math puzzle game Sudoku. With the popularity of Sudoku rising in the USA maybe some company will try to localize the last game for the US audience if Brain Flex sales are strong. Game screens below.