Scramble (video game)
Scramble is a 1981 horizontally scrolling shoot 'em up, arcade game. It was developed by Konami, and manufactured and distributed by Stern in North America. It was the first side-scrolling shooter with forced scrolling and multiple distinct levels. The hardware uses two Zilog Z80 microprocessors for the central processing unit in addition to two AY-3-8910 sound chips for the sound.