| Intellivision |
· HIDDEN MESSAGE: “T J LOUGHRY” (for programmer Tom Loughry) appears as text at the end of the code. {Scott Stilphen}
· HIDDEN MESSAGE: According to the programmer, a special message will appear after destroying 50 Dreadnaughts. {Tom Loughry}
· Special in-house version exists! This game was such a favorite of Mattel programmer Bill Fisher (and he became so good at it) that he hacked the game code to create a harder version of the cartridge. That version, known as both The Dreadful Factor and The Dreadnaught Fracture, became popular with a number of the other Mattel programmers. {BSR}
