The humans are polluting the Amazon! Play as an Amazon River Dolphin (Boto) and lead your piranha to destroy the enemy boats to save the river! Battle enemies above and below the surface of the river through 14 waves of hair-raising eco-action. Control your boto with the arrow keys. Eat fish and snakes to heal your damaged boto and avoid the red blobs of pollution, lasers and sub torpedoes to survive as long as you can to get the highest score.
Move with the arrow keys, jump above the sea level, let the piranhas follow you, when the fish come down on the boats they will explode!