Tarzan Goes Ape!

You play Tarzan, who the witch doctor has turned into a monkey. To change back
to his human form, you need to collect six ingredients – necklace, mask,
plant, crossbones, a bottle, and gem – and place them in his cauldron. While
you are doing this, you deal with various forms of wildlife; such as snakes,
birds, lizards, and cannibals; by stoning them to death. Fruit can be picked
up for bonus points. There are two types of skulls that are scattered through
each level. One that gives you reverse controls, and one that causes loss of
life. When Tarzan has obtained all six ingredients, you proceed onto the next
level. In between these, you play a bonus level where the object is to collect
a number of gems before time runs out.

Tarzan Goes Ape!