Whats your favorite games for every system you have ever had?

atari---pinball, pitfall
NES---contra, metal gear
Genesis---i am having a mental block of the games i played so i am going with Sonic :shrug:
ps1---syphon filter, tiger woods, madden
ps2---splinter cell, manhunt, GTA
ps3---uncharted, ratchet and clank, (to be continued)