I got stuck at CEZ2 and 3. In two, I cept missing that switch that is near the opening to the water. I got all the others though... Then with CEZ3, I just had a hard time hitting him without running into the spinning spike balls. I really had no troube with CEZ1 because I just kept running forward. I guess I just saw the star post and went that way. THZ2 was actually very easy for me though. I found the convayor belt area on my first go because the crawler commando hit me into it. Althpugh, it's in plain sight...