Li'l Cinders are fire rock enemies that appear in Super Mario Galaxy and Super Mario Galaxy 2, appearing as the fiery counterparts of Li'l Brrs. Their hot bodies can burn Mario on contact, rendering them unsafe to touch. To defeat one, Mario must use his Spin Jump to put out the flames, rendering it stunned. In this state, it is charred black and Mario is able to defeat it by simply running into it. If he is not quick enough however, the Li'l Cinder will hop along the ground, attempting to jump lava to regenerate its fiery body. They are also able to regenerate without lava, albeit it will take longer.
A Li'l Cinder.
Artwork of a Li'l Cinder from Super Mario Galaxy 2.