Cool New Guns and you get HOVER BOOTS!!!
I have only played the first 4 levels but so far it really rocks. The new weapons are both cool and funny as all get out. The Sonic Eruptor is this frog like bio-weapon that when you pull the trigger emits this really loud croaking / burping sound that shatters your opponents. Very effective and very funny.
You also get a couple of weapons that you can modify and switch around to find the best combination of ammo type, trigger action, paint job etc. And all weapons upgrade as you use them. So switch out your weapons as often as you can and use them. The more kills you get the faster they upgrade.
The time puzzles you have to solve using Clank are very fun. I can imagine that some of them will get to be pretty hard as the game progresses but I'm not going to list any spoilers. Just get the game and see what I mean.
The cut scenes are pretty good. Dr. Nefarious is hysterical.
All in all I'm really glad that I chose this as my first game. Now I will have to track down a copy of Tools of Destruction to play it as well.