How do you use knife on Tarzan N64?

You can't use a knife in Tarzan on N64. There is no knife item or mechanic in the game.

Tarzan's main tools are:

* Vine Swing: This is your primary mode of traversal and attack. You can swing from vines to reach higher areas, avoid enemies, and even attack them by swinging into them.

* Jump: Tarzan can jump to reach platforms and avoid obstacles.

* Grapple: You can use a grapple to pull yourself towards ledges and other objects.

* Roar: This can be used to stun enemies and open up pathways.

The game relies on these abilities and environmental puzzles to progress, not a traditional weapon like a knife.