Hmmm let me check on my PS3, oh wait I can not because it is offline .
Off the top of my head I know for a fact I got the following ones...
Burnout Paradise - 4/10 all you need to do is play through the Game, and then smash through all the billboards and stuff it is pretty easy and none of them are hard to hit.
Call Of duty Modern Warfare 2 - 6/10 Playing campaign on veteran was not much problem, I like to go through games on the hardest setting after I finish them once, after that finding the intel just took some careful exploration in the levels. What was pretty hard, was the Special Ops.
Ratchet and Clank A Crack in Time - 2/10 Easy as pie, just go through the game on hardest mode twice, the game tells you where all the collectibles are if I remember right lol.
Uncharted 2 - 6/10 some bits on crushing were not so fun, as for the treasure some of them were easy but others were ridiculously well hidden.
God of War 3 - 5/10 I thought this would be inhumanly hard, but once you learn to block, dodge and the attack patters (just like KH) it becomes very easy, there is only ONE genuinely hard fight in the Game, and even then once you figure the technique it can be done much easier. But the game does suddenly crank up the difficulty in the last hour or so -/. You do not have to find all the collectibles to get the trophies for them, and the challenge of Olympus was cake.