Japanese Industrial Standard - It's not a Phillips!
Most often found in Japanese equipment, and looks much like a Phillips, but it's not. A JIS screw will not cam out like a Phillips will, and may be damaged when a Phillips drivers is used in them. JIS screws can (usually) be identified by a single raised dot, next to the screw slot. JIS is often used in RC equipment from Japan, and the drivers are hard to find in America, but we have you covered.