Humongous / Eagle Island

In Humongous (1982), the monstrous offspring of a violent crime grows up in seclusion on a remote island, where a boat-full of hapless teens have shipwrecked, unaware of what's lurking in the woods. In Eagle Island (1986), two female bird photographers try to stay hidden as Russian special forces in ninja suits make short work of the Swedish conscripts on their way to steal a secret code.