Nejiron

Tatl: "That's a Nejiron. Don't get too close to it. Sniff...Sniff... It smells like gun powder!"

Nejiron appears in Ikana Road and Stone Tower Temple. They're rock creatures (like Gorons) that dig out of the ground to roll into Link and crush him during the events of Majora's Mask. Long-range weapons are the best to kill them, because they explode as they are defeated in a final stand to defeat Link.