Now that I've actually bought a few Famicom carts (mostly pirates, the only official one I have is the Japanese version of Milon's Secret Castle) I'll list them here:
Super 4-in-1 (K4303)
Games included:
Tekken 2 (cut down version which only has 5 characters instead of
Knight Rider (that awful game based off the TV show)
"Arthur Robin" (Lupin Sansei: Pandora no Isan)
99 Fifa (hack of Tecmo World Cup Football
112-in-1 (HH-035)
Games included:
Super Mario Bros. (unlike most pirate multicart releases, they only removed the copyright on this one)
Battle City
Excitebike
"Teletubbies" (hack of Mario Bros. A bit odd that they'd leave SMB intact when they made a hack of this)
Pac-Man
Space Invaders
Ice Climber
Game Star Smart Computer Pro 48-in-1
Games included, not including the so-called applications:
Duck Hunt
Track & Field
Poker
Solitaire
Minesweeper
Didn't check this enough to see if there any more real games.
Tom & Jerry: Best of the Best (actually the normal Tom & Jerry game, NT artwork of course
)
Lupin (same game as the one on the 4-in-1, might sell it seeing as it's pointless having 2 of the same game)
The Young Indiana Jones
That AT-101 84-in-1