Last Monday I got Ratchet & Clank: Up Your Arsenal. I haven't played it much because I've been very busy. It seems to be pretty good, but I'm not sure if the single player campaign is better than R&C Going Commando. I haven't had a chance to play online or off-line multiplayer yet but hopefully I'll try out the multiplayer modes very soon. I'm currently on the 5th planet (the one with the water tunnels). I planning on doing some more progress during the weekend.

If anybody is interested in playing online with me PM and tell what time you want to play, I will be glad to play against GS users (as long as you don't kick my ass too hard :) ).