Actress Miho Kanno appears in the DSiWare Brain Age ads. She's asked to make a face like she's seen something that she shouldn't have seen. She does and lets out a frightening laugh.
DSi Brain Age makes use of the camera and even has users make funny faces.
Why? Because stuff like makes you smarter. Duh.
The DSiWare take on Brain Age covers humanities and science and is priced at 800 DSi Points.