Invincible Mario
Invincible Mario is a form Mario assumes after using a Star. In this state, which only lasts for a few seconds, he is resistant to any enemy or hazard (such as lava). Additionally, he is able to defeat them by simply touching them. He is not protected from falling into a pit or dying when time's up, however. Invincible Mario, just like the Star, made his first appearance in Super Mario Bros. Invincibility is depicted by a flashing, and, in later games, also color-changing character. Since this isn't really a transformation, Mario can become invincible and mantain the form he had before, for example, if he's Fire Mario and gets a Star, he becomes invincible, but he's still in Fire form. In the Mario Kart series, every driver could become invincible by collecting and using a Star, allowing him to make other drivers slide by touching them.
In Super Mario Bros. 3, there are some ? blocks that normally contain coins but that contain Starmen if Mario or Luigi is invincible.
