Two of Sega's anticipated spring titles will see a delay in Japan. The company today announced it will push back the release of Chromehounds for Microsoft's Xbox 360 from May 25 to June 29, and Myst for Sony's PlayStation Portable from April 20 to June 15. Sega has said the extra time is being used to make sure the games meet quality standards. No North American release dates for either game have been announced.