Van Vader (バンベーダー) is the final boss from Altered Beast. Neff himself takes on the form of an armored, humanoid rhinoceros. If the Centurion is far from him, Neff will charge across the screen at high speed. When close, he attacks with punches and kicks.

In the Famicom version of the game, Van Vader is much bigger, but is stationary and only attacks with punches, which releases shockwaves in two different heights.

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