Pakacuda 1983

Pakacuda is a Pac-Man variant with an underwater theme. Instead of the yellow hero, you control a hungry fish swimming through a maze and eating smaller fish. But beware – you are also prey for the octopuses that relentlessly chase you. If they catch you, you lose a life. Your only protection comes from the eels: eating one charges you up for a short time, allowing you to defeat the octopuses. Once the charge runs out, however, the enemies reappear and the chase continues.