I remember how StreetFighter2 alone made everyone buy a SuperNES.  But I’m wondering if this was topped by Mario64 for the N64, or Halo for Xbox?

I remember when my friends would argue about which was better: snes or genesis…all cuz of mortal kombat, and the infamous blood code.

i dunno about any killer app, but i may just have to buy a ps2 in order to play gran turismo 4…i dont think my friend liked the fact that i borrowed his ps2 and gt3, and in about 2 days, completed the whole game and got all the cars….