The player controls Nautila, a "babelfish" which is used to indirectly influence the environment within a huge water tank. Nautila has to suck up dangerous fish, clear rocks, supply food etc. for Amazing Virtual Sea-Monkeys brine shrimps. The Amazing Virtual Sea-Monkeys try to reach a Venus Shell as soon as they are hatched.
The game features 70 levels in total, with increasingly difficult objectives. If Nautila is not fast enough to clear the puzzles preventing the Amazing Virtual Sea-Monkeys from reaching their shell, they will perish.
The gameplay involves controlling Nautila as it navigates through the water tank, sucking up fish and clearing obstacles while keeping the Amazing Virtual Sea-Monkeys alive and on track to reach the Venus Shell. The game's difficulty level increases with each level, requiring players to think strategically and act quickly to succeed.