Spikehead is a Cappy around the same size as the other kids with swirly pink cheeks. He has a dark green headband making his hair form a spike.
He is often seen carrying a stick.
Spikehead is the pushiest and the most outspoken of the Cappy children, but he is also shown to be very brave, like when he got closer to Dyna Blade's feather Kirby's Egg-Cellent Adventureor when he accepted to go to the haunted forest without hesitation Scare Tactics - Part I, he also has a big crush on Honey. He often plays with Tuff, Iro and Honey and occasionally with Kirby and Tiff. In his earlier appearances, he acted a little bit like a bully around Kirby but then later got along with him.
His Japanese name comes from the beginning of the いろは歌 /Iroha (いろはにほへと…), This "いろ" originally means color, but in this sentence of the Iroha, it means a flower blooming. The Iroha is a poem that uses each character of the Japanese syllabary just once, and is used for ordering them, similar to "A,B,C,D..." in the English alphabet. Also, Honey comes from "いろはにほへと…", and Iro (Hohhe in Japanese) comes from "いろはにほへと…."