The most recent multiformat Tony Hawk title from Activision has had a disastrous launch in the US, selling only 3000 units in its first week in October.
According to Cowan and Company, Tony Hawk: Shred was "a virtual no-show" at retail, with another Activision title, DJ Hero 2, also suffering low sales of 59,000 during the two weeks of sale in the month.
Electronic Arts' first-person shooter Medal of Honor sold just over 1 million units during October, below expectations of 1.5 million. The company's latest sports title, EA Sports MMA sold 45,000 units.
The biggest software release in the US for the month was Take-Two's NBA 2K11 which sold 1.15 million units, roughly twice the sales of last year's iteration.
Cowan also noted that the low 6 per cent in software growth for the month was largely due to poor continued sales of games released in September, including Halo: Reach and EA's NHL 11.
Electronic Arts is currently restructuring its development process for its sports titles, while Activision is taking more drastic measures to staffing levels.
Yesterday it confirmed the closure of its Budcat Creations studio, as well as job losses in QA. It has also put staff at Bizarre Creations on 90 days notice as it considers the future of the UK studio.
Tony Hawk: Shred developer Robomodo let 60 staff go last month, revealing that it would no longer be working on the franchise.