The stock swap was valued at ¥458 billion upon its completion, making Namco Bandai the third-largest Japanese game company after Nintendo and Sega Sammy Holdings.[174][178] However, Namco Bandai's impatience to move forward with the merge and clashing corporate cultures between both parties resulted in a ¥30 billion deficit.[5] As its parent company was preparing for a full business integration, Namco continued its normal operations, such as releasing Ridge Racer 6 as a launch title for the newly-unveiled Xbox 360 in October and collaborating with Nintendo to produce the arcade game Mario Kart Arcade GP.[179][180] The company honored the 25th anniversary of its Pac-Man series with Pac-Pix, a puzzle game for the Nintendo DS,[181] and entered the massively multiplayer online game market with Tales of Eternia Online, an action role-playing game based on its Tales franchise.[182][183]