In case you missed the post, the European PlayStation Store just got the trial and unlock for Earthworm Jim HD in its last update. For those wondering about the US Store, your turn is on the next update on Tuesday.
Apart from giving an HD touch-up to all the levels from the original, Earthworm Jim HD will have three additional levels for the single player mode. That's not all - the game will also be getting support for up to four players to play co-op in 15 multiplayer maps.
Earthworm Jim HD will be in the next US PlayStation Store update, that's August 3rd.
[via PlayStation Blog]