Ok, let's throw the retro gauntlet down. For those who doubt me, I do give you. Doom on the Intellivision!
http://spatula-city.org/~im14u2c/intv/doom/
Need to get this preemptive strike in before there is doubt.
I DARE anyone to one up this! This BLOWS away Street Fighter II on the C64.
And NO, Grand Theft Auto for the Intellivision doesn't count. It is NOT A REAL GAME!