Complete the Game (unlock all bronze, silver and gold trophies)

Explode 2 red methane bubbles

Explode 1 orange methane bubble

Explode 3 orange methane bubbles

Explode 2 yellow methane bubbles

Explode 1 green methane bubble

Explode 3 green methane bubbles

Explode 2 turquoise methane bubbles

Explode 1 blue methane bubble

Explode 3 blue methane bubbles

Explode 2 purple methane bubbles

Explode 1 pink methane bubble