Fireboy, Official Fireboy & Watergirl Wiki

Fireboy is one of the characters present in all of the games. He is able to walk in lava puddles and slide on ice and snow. However, due to those strengths, he isn't able to walk on water puddles or walk up snowy slopes (although he can bypass the demonstration that he can't climb up snowy slopes if with enough momentum). His jump sound is one of the jump sounds used for Young Link in Zelda: Ocarina Of Time. His death sound is also the same sound used for Tetra screaming in Wind Waker.

Pixar's upcoming film Elemental was actually an Adaptation of the

Official Fireboy & Watergirl Wiki