While it isn't exactly game specific, adhocParty is perhaps the most noteworthy addition to Sony's PlayStation Network this week. The service allows PSP gamers with a PlayStation 3 to play some Ad Hoc mode games online through the console's Internet connection. Games thus far announced to use the feature are Capcom's Monster Hunter Freedom Unite and Polyphony Digital's Gran Turismo PSP.
Downloadable games, of course, are represented this week, as well. PopCap's ubiquitous puzzler Peggle makes its way to the PlayStation Store for $9.99. The game includes 55 levels and 75 challenges, as well as a variety of multiplayer modes. Gamers looking for even more Peggle can also pick up the Nights expansion for $4.99. Peggle Nights offers 60 additional levels and challenges set in ethereal environments.
Two new PSOne classics are now available through the PSN Store. Originally released to glowing praise in 1998, Resident Evil 2 sees Leon Kennedy and Claire Redfield picking their way through the zombie-infested Raccoon City and can be purchased for $5.99. Another classic from days gone by, Legacy of Kain: Soul Reaver from current Tomb Raider developer Crystal Dynamics is available for $5.99.
With Assassin's Creed II skulking onto the Xbox 360 and PS3 this week, the PSP-exclusive Assassin's Creed: Bloodlines worked its way to both retail and Sony's online storefront. Bloodlines picks back up with Altair shortly after the conclusion of the original Assassin's Creed and is available for $39.99. New PSP Minis additions this week are D-Cube Planet and Circles for $3.99 and Echoes for $2.99.
For a full list of new demos, add-ons, and wallpaper themes included in the weekly update, check out Sony's official PlayStation blog.