manhunt is tight i downloaded it on the computer, werd its gruesome lol

get metal gear solid 2 or 3 (part 1 is for ps1 so idk if your interested in that)
gran turismo 3
gta 3,vc, or sanan

i dont got halo2 so i wouldnt recommend it right now....but i got halo1 that shit is tight as fuck if you could play at a friends house or smethin with 3 other people...but if your by yourself dont get it cuz its not worth getting it just for singleplayer

peace