i don't know if it is overrated cause i haven't played it but i loved syphon filter on the ps1 and think killzone is over rated as its low res texture and dust, when i came to play it on my cousins ps3 i expected something mind blowing but it wasn't. charecter animation is good. Don't really remember using grenades and rocket launcher so can't comment on the particle effects and also in my opnion its very boring that i only played it for 3 hours and left it. Like forza 3 which is touted to have fantastic graphics when i see nothing specail about it, but its fun and thats what i like about forza. Halo 3 wasn't anything specail in terms of imersion but was alot of fun if you are playing with friends. Loads of games are overrated this generation especailly exclusives.