What the official page confirms
The official description confirms a horde of endless rabid monkeys. It does not give a verified enemy roster, health values, or attack patterns.
Practical check
Treat fan-made enemy names or statistics as unverified until the creator publishes them or they can be checked directly in game.
Source
Roblox — Survive a Million Monkeys
Independent fan-made guide. Not affiliated with Roblox or the game creator. Game details and codes can change; verify current information on the official experience page.