Dark Suicide Mouse is an unofficial antagonist in Abandoned: Discovery Island.
Dark Suicide Mouse is an alterative version of Shade Suicide Mouse, and is just Suicide Mouse, but he only has glowing-white-esque eyes and long fingers on his gloves. He has black pants. The left glove of his fingers appear to be much longer than the right hand of his fingers, he has 2 wider eye-holes.
Dark Suicide Mouse starts at Cam 7, when he is active in here, he shuts down all the rooms, except for the Office, then he goes to Cam 3, he goes to Cam 1, he goes to Cam 2, and finally he goes to the Office turned off when he's in the Office, you'll have to hide under your desk before he kills you.