The beta for Marvel Tōkon: Fighting Souls lasted three days and faced significant challenges, including PlayStation Network outages on launch day and performance issues for PC players, such as severe stuttering and poor optimization. Some players reported a seamless experience, while others criticized the PC port as one of the worst in recent times. Arc System Works acknowledged the issues and is investigating solutions, promising updates and providing troubleshooting options. Speculation about the causes of performance problems included background processes from anti-cheat and PlayStation services. Despite these issues, the beta reached a peak of 33,233 concurrent players on Steam, surpassing previous records set by Street Fighter 6 and Tekken 8. The official release is scheduled for August 6, leaving developers with just over a week to address the feedback and performance issues.