None of these puzzle elements are too hard to figure out, but they help set the pace of the game really nicely. (andymerrill.com)
None of the puzzles take much thought, and I found myself constantly wishing that they were more challenging — or, rather, challenging at all. (gamerstemple.com)
Since he is with you through more than half of the game none of the puzzles are ever challenging and since he is invincible to all enemies who don't have Kryptonite the games difficulty is dropped drastically. (darkstation.com)