Monkey

Monkeys are a recurring enemy in the Crash Bandicoot series, having appeared in one form or another in Crash Bandicoot, Crash Bandicoot 2: Cortex Strikes Back, Crash Bandicoot 3: Warped, Crash Bandicoot: The Wrath of Cortex, and Crash Twinsanity.

Crash Bandicoot
The monkey in Crash Bandicoot often appears in the native village and rolls back and forth in a specific area, threatning to run down Crash.

Crash Bandicoot 2: Cortex Strikes Back
The monkeys in Crash Bandicoot 2: Cortex Strikes back often appear in the ruins levels and some hop back and forth between a set of three platforms, whereas larger ones throw barrels at Crash in a simaliar manner to Pinstripe's minions in the previous game.

Crash Bandicoot 3: Warped
Two variations of the monkey appear in Crash bandicoot: Warped, in which the brown-furred monkey that appears in Arabian Levels will carry a stack of three pots trying to block Crash's way, if Crash spins the monkey two pots will be destroyed while the top one falls on the monkey's head ubscurring its veiw. Then, it will start aimlessly trying to charge at Crash it can be defeated with any attack at this point. The white-furred monkey that appears in egyptian levels will hide in a set of three pots and pop out of one and throw an oilball at Crash. The monkey itself can not be killed, but the pots it hides in can be destroyed, and when Crash destroys all of these pots the monkey will do nothing but cower in fear. You also can get wumpa fruit by jumping on them.

Crash Bandicoot: The Wrath of Cortex
The monkeys in Wrath of Cortex appear in the level Crash and Burn where they are in clothes similar to Tribesman and they're main offense is using a banana as a club.

Crash Twinsanity
Monkeys only appear in the first level in Twinsanity throwing Wumpa Fruits at Crash, but they do not harm Crash and they can be collected, while one shook a tree to get Wumpas down, the other two would pick them up and throw them, they act as the second rarest enemy in the game, the first is N. Gin's henchmen who are the rarest enemy in the game and the series. They are colored blue and there are three in the entire game. When they run out of Wumpa Fruit they will stand on the ground confused. But there is an Acorn Crash can roll into a hole to make another Wumpa Tree.

Trivia

 * The Monkeys in Wrath of Cortex are coming out of huts supposing they are mimicking Tribesman.