Invinco Dual Head On 2

SEGA partnered with Gremlin industries to release numerous arcade titles during the late 70s and early eighties. Invinco / Head On 2 belongs to the Dual series of arcade cabinets which offered players an option to play 2 games in one cabinet.

- Invinco is a 1979 Space Invaders clone made by Sega. Though it is essentially the same game as Taito's, the aliens don't just move left and right - one row blinks in and out of view, one row rolls about making it difficult to hit and another has aliens that turn into exploding bombs when hit, taking out everything around them.

- Head On 2 is an arcade game released in 1979 by Sega. Cars continuously drive forward through rectangular channels in a simple maze. At the four cardinal directions are gaps where a car can change lanes. The goal is to collect dots in the maze while avoiding collisions with the computer-controlled car that is also collecting dots. It's predecessor was the first maze game where the goal is to eat dots, and Head On is considered a precursor to Namco's 1980 hit Pac-Man.