N64 insert box holder...

[NytroSkull7]

Pokemon Snap (nr)
Scooby Doo Classsic Creep Capers (nr)
Hey You Pikachu (nr)

[Kitsune Sniper]

You know, this also happened with GBA games! I have a couple of games that don't have a tray, but instead they have this little cart holder attached to the cardboard box.

I don't see the point of collecting these different boxes as variants. HOWEVER, it is a good idea to make a list of what games came like this just in case it's needed by someone.

[Blitzwing256]

some of them could be very short run varients and could end up being more valuable to the completist, remeber some of the 5 screw nes games are pretty tough to come by (just try to find a star force I dare you!), not the most exciting variant but still fun to see whats out there.

[Trevelyan]

ive noticed in trade (& on ebay) that lots of the none removable boxes are squashed & out of shape. im lucky if they are near a good condition CIB, & Id like that at least because im a bored collector

[DDCecil]

Here's some more for your list:

Banjo-Kazooie (nr)
Doom 64 (r)
Duck Dodgers (nr)
Earthworm Jim 3D (nr)
Goldeneye - Player's Choice (nr)

[izarate]

1080º snowboarding (nr)
Waverace 64 (r)
Super Smash Bros. (nr)
Star Fox 64 w/Rumble Pak (r)
The Legend of Zelda: Ocarina of Time Collector's Edition (nr)
Pilotwings 64 (r)
Jet Force Gemini (nr)
F-1 World Grand Prix (nr)
Kirby 64 The Crystal Shards (nr)
Star Wars Rogue Squadron (nr)
Castlevania (nr)
Castlevania Legacy of Darkness (nr)
Resident Evil 2 (nr)
World Driver Championship (nr)
Harvest Moon 64 (nr)
Ogre Battle 64 Person of Lordy Caliber (r)
Turok (r)
Body Harvest (nr)
Mischief Makers (r)
Winback (nr)
Starcraft 64 (nr)
Hybrid Heaven (nr)