Create a vibrant and playful image of a ninja monkey. The design should be unique and colorful, maintaining key characteristics of a monkey, such as expressive eyes and distinctive facial features. The ninja elements should include traditional ninja attire like a black mask, stealthy clothing, and ninja weapons like shuriken or a katana. Incorporate dynamic poses and action elements to emphasize agility and stealth. The overall look should be fun and whimsical, making it a truly one-of-a-kind depiction of a ninja monkey.