What were some of your favourite games when you were younger? Mine were (and still are) Smash 64, Animal Crossing, and a bit later on Pokemon Pearl.
Spyro 1, Crash Warped, Pokemon Silver + Crystal, some Rugrats game for the PS1 (I forget which one, there was also one for the GBA I remember too), Rayman 1, 2 & 3, Rayman M (or Rayman Rush), All the Megadrive Sonic games (I had Mega Collection), Sonic Adventure 1 + 2, Kao the Kangaroo, Spongebob: Battle for Bikini Bottom, Sonic Advance, Bomb Jack, Smurfs Nightmare, Pop Up (or Cool Ball), Hugo 2, Catrap (or Pitman), and that Looney Tunes game for GameBoy. Those are the ones that make me think "Oh shit, I remember these from when I was younger."