My god, that is a hard one.
Will have to look at my collection to jog the memory.
Some absolutley top games on the 64.
Off the top of my head.
Commando
Rambo
Yie Ayr Kung Fu
Way of the Exploding Fist
The Hobbit
Lord of The rings
Ranarama
Paradroid
Delta
The Blue Max
Wizball
Jetset Willy
Manic Miner
Monty on the Run
Beach Head
Raid Over Moscow

There will be loads more.
Everyone my absolute favourite.