The video shows a small brown mouse with a long tail. The mouse is standing on a purple surface with several purple blocks. The mouse moves around the blocks, sniffing and looking at them. The background is blurry, but it appears to be a room with a patterned wall. The mouse's fur is smooth and shiny, and its eyes are bright and alert. The blocks are uniform in size and shape, and they are arranged in a way that the mouse can easily move around them.