Earthworm Jim HD, BioShock 2 DLC hit PSN

Sony's PlayStation Network lineup this week is spearheaded by the arrival of a familiar, though prettified, worm named Jim. As developer Gameloft promised last week, Earthworm Jim HD--which debuted on Xbox Live Arcade last month--inched onto the PSN this week.

Earthworm Jim HD is essentially a reimagining of the side-scrolling action platformer's original 1994 release on the Sega Genesis. It follows the mutated worm through more than a dozen bizarre levels on a quest to save a princess, defeating the nefarious Psy-Crow and launching a cow in the process. However, this year's release incorporates updated graphics, four-player co-op, and three new custom levels.

For those who can't get enough of the underwater ruins of Rapture and its society of sadistic splicers, 2K Marin is giving players a reason to return to it this week. The $5 Protector Trials downloadable content has players defending Little Sisters from waves of mutated splicers. The scenario, a cross between Gears of War's Horde mode and the Escort modes from the Resident Evil series, was used in several set pieces during the game.

The action will take place on six new maps based on locations from BioShock 2's single-player narrative. The Protector Trials also features three difficulty levels, concept art, videos to unlock, and seven new achievements/trophies for players to collect.

Switching to PSP releases, Sony is now selling 2007's poorly received Warriors of The Lost Empire ($9.99) in its online store. The hack-and-slash action role-playing game, developed by Tommo, features a number of dungeons to explore, items to customize, and four playable characters.

On the smaller side of Sony's offerings this week are two new minis. Arctic Adventures: Polar's Puzzles ($4.99) is a wintry-themed game that casts players as a puzzle-solving polar bear. The other mini added this week is Widget's Odyssey 2 ($1.99). In the puzzle platformer, players control robots Spad, Cosmo, Bruce, Helmet, and Monk and embark upon a quest to save the universe from the tyrannical Yagor and his evil henchmen.

Living room faux rock gods and goddesses this week can download new tunes for Guitar Hero and Rock Band. Guitar Hero adds a three-pack from scream-thrashers The Used, and Rock Band welcomes eight singles from bands ranging in style from the Eagles of Death Metal to Blondie.

A full list of the week's deals and new PlayStation Store content, including themes, wallpapers, demos, discounts, and add-on content, is available on the PlayStation Blog.