The 2013 Blu-ray release includes both the theatrical and extended cut on the same disc. Used copies are under $8 on eBay or Amazon.
The is a 12-minute longer version of the theatrical film that significantly alters its pacing, structure, and level of violence. While the core plot remains a "dumb fun" action-heavy sequel, this cut is widely considered the superior way to experience the movie for fans. Key Improvements in the Extended Cut g i joe retaliation 2013 extended cut brrip 400 top