The player controls a character named Quiffy who is the last of his race of small green creatures.

His mission is to reach the surface by navigating all the sewers, whilst they are slowly flooding.

Although he can swim and has the appearance of an amphibious life-form, he can only breathe above water and will start to drown if he runs out of air.

In general the enemies move around in a specific pattern, and when killed will throw a heart up which will return health to Quiffy.

[2] The game was reviewed in 1990 in Dragon #164 by Hartley, Patricia, and Kirk Lesser in "The Role of Computers" column.