What is the one game? I'm down to needing 3 more titles so your's could be the 4th cover I make.
The three I have left are
NFL Blitz
NHL Breakaway 98
NHL Breakaway 99
Shadowman is the one that's missing, pretty sweet game.
Another shopping spree and you'll be missing more seing your aiming for a full set 
I might bump my collection up to an even 100 carts, I have 80 here at home and 14 in transit right now, but I don't know what to get. Thought about Mario Party 1-3, but I never really enjoyed those.
Was gonna try to make covers myself, but my time is focused on my region mod right now.
Do you have a list of your collection? Might be able to help with some suggestions! 
Mario Parties are fun, but playing by yourself sucks..
I prefer Mario Party on the Wii, but that isn't saying I like it. I agree with pringles actually
The ones I've got so far, PAL and NTSC seeing I'm going for a region free HDMI N64
007: Golden eye
007: The world is not enough
1080 Snowboarding
Astroids Hyper64
Banjo Kazooie
Banjo Tooie
Beetle Adventure racing
Blast corps
Body harvest
Bomberman
Bomberman Hero
Buck Bumble
Bust-A-Move 2
Castlevania
Conker's bad fur day
Diddy Kong racing
Donkey Kong
Dr. Mario
Duke Nukem 64
Duke Nukem Zero Hour
Eartworm Jim
Excitebike
Extreme G
Extreme G2
F-Zero
Forsaken
Gauntlet legends
Glover
Goemons great adventure
GT64
Harvest moon
Iggy's reckin' balls
Indiana Jones
ISS 98
Jet force Gemini
Killer Instinct Gold
Kirby
Lego Racers
Lode runner
Lylat wars
Mario 64
Mario Golf
Mario kart
Mario Tennis
Mega man 64
Mickey's speedway
Micro machines
Midways greatest arcade hits
Mischief makers
Ms. Pacman Maze madness
Mystical Ninja starring Goemon
Namco Museum
NFL Blitz 2000
NHL 99
Nightmare Creatures
Nuclear strike
Ogre battle
Paper Mario
Paperboy
Perfect Dark
Pilotwings
Rainbow Six
Rakugakids
Rampage: World tour
Rat attack
Rayman 2
Re-Volt
Ready 2 Rumble
Ready 2 Rumble: Round 2
Resident Evil 2
Robotron
Rocket robot on wheels
Shadowgate
Shadowman
Sin and punishment
Snowboard kids
Space Invaders
Space station Silicon Valley
Star Wars: Battle for Naboo
Star Wars: Rogue squadron
Starshot Space Circus
Stunt racer 64
Super Smash Bros
Tetrisphere
The new tetris
Tony Hawks Skateboarding
Wace racer
Wetrix
Winback: Covert Operations
Wipeout
Worms: Armageddon
Yoshi's story
Zelda: Majoras mask
Zelda: Ocarina of time
