Music games are big money, and it appears Activision is in it for life, as they are pushing out tons of Guitar Hero titles. The publisher is also expanding into other types of music – DJ Hero is an upcoming game that has players scratching for glory. However, it appears they have hit a snag: publisher of Scratch: The Ultimate DJ is suing Activision and Scratch developer 7 Studios over “intentional interference with contract, breach of contract, conversion and misappropriation of trade secrets.”

Genius Products, the publisher, is claiming that Activision recently purchased 7 Studios in order to benefit its own upcoming DJ title. Their suit alleges that the duo “conspired to withhold the current version of Scratch in an effort to delay the development and release of Scratch and to gain access to proprietary technology.”

Here’s what they had to say:

Prior to undertaking these wrongful actions, Activision approached Genius with an offer to acquire Scratch. The offer was rejected. It is alleged that Activision then commenced the process of acquiring Genius’ contract developer, 7 Studios, while under a non-disclosure and confidentiality agreement with Genius. It is also alleged that after Activision acquired 7 Studios, the two companies began conspiring to prevent Scratch from getting to market on a timely basis by withholding work product, code and the proprietary game controller.

Activision is yet to comment on the matter.