Red and blue diamonds can be collected by players, and mechanisms like levers and buttons will have to be operated carefully in order for both characters to complete the level.

[1] Oslo Albet said that he developed Fireboy and Watergirl because he had "always found puzzle games to be fascinating".

[7] The sixth game in the series, Fireboy and Watergirl: Fairy Tales, was released on Steam on November 1, 2021.

[9] However, they stated that it did not necessarily have the complexity or the longevity to compete with other 2D platforming games such as Spelunky or Super Meat Boy.

[10] Nicole Clark of Polygon described the game as a "classic" and said that playing it "feels like traveling back in time".