Most fun simultaneous co-op games?

[Gunstar Hero]

Most fun simultaneous co-op games?

I wanna hear other's suggestions as I have played the crap out of the games I already have. Please no games past the 64-Bit time period, as this is a classic game section of the forum and I am only looking to accept games from then or before (preferably before).

GAMES I ALREADY PLAY

Battletoads (NES)
Contra (NES)
Gunstar Heroes (Genesis)
Streets of Rage (Genesis)
Golden Axe (Genesis)
Legendary Wings (NES)
Firepower 2000 (SNES)
Ms. Pac-Man (Genesis)

[mkestreet]

zombies ate my neighbors(genesis or snes)
twisted metal 2(ps1)
final fight 2(snes)

[Duke.Togo]

Just a couple off the top of my head:

Life Force (NES)
Parodius (Famicom)
River City Ransom (NES)
Double Dragon (SMS)

[isufje]

Ikari Warriors. The most fun I had in 87. Keep in mind I was four years old BTW. Having an older brother that can play better than you doesn't hurt either.

[Hwj_Chim]

Toe Jam and Earl for the Genesis!!!

[DDCecil]

Super Smash T.V. as long as you are playing with someone who doesn't take all the power-ups! (I'm looking at you, brother...)

[Gunstar Hero]

Ikari Warriors. The most fun I had in 87. Keep in mind I was four years old BTW. Having an older brother that can play better than you doesn't hurt either.

Thanks for reminding me of this one, I used to always play the arcade version with my older brother!
Do you know if there were any good home console versions of this? I would love to play that again.

[Gunstar Hero]

Thanks for the suggestions everyone! I'm really looking forward to picking up Super Smash TV, Pocky and Rocky, and Super C. I may also give Toe Jam and Earl a try... However the gameplay kind of seems repetitive and dull. Oh well I guess I'll find out the hard way... Anyways a game that famous can't be that bad right?

[Satoshi_Matrix]

My personal favorites:

Smash TV or Super Smash TV (NES/SNES) the NES version needs the Four Score for two players as each player needs two controllers.
Super Bomberman 2 (SNES)
Panel de Pon! aka Tetris Attack (SNES)
Teenage Mutant Ninja Turtles IV Turtles in Time (SNES)
Super Mario Kart (SNES)
GunStar Heroes (Genesis)

I'll update this list later when I think of more obvious things I'm missing because of my current inability to think