! SHIP TYPE O NOT DEFINED ! is a glitch alien that accidentally didn't identify itself on the client side of the game. They appear only when there is a large bug, usually when implementing an alien event. These aliens aren't special; rather, they are just normal aliens with a default look Defcom and the admin Police ship) and default "error" name. If you hit an Alien with WIZ-X rocket, there is a chance to see that glich. These glitch ships have the same graphics as the Defcom or Police ship.