From TV in Japan:

Recently, a golden version of the Chunichi Dragons mascot appeared(Called “Golden Doara”). He’s quite acrobatic and is far more wacky than his regular counterpart (just plain “Doara”, which changes the first letter of Koala to a “D” to make it sound like the beginning of the katakana word for Dragon). To beef up his skillz, regular “Doara” goes to watch some pro wrestling matches. “Golden Doara” enters a match against three wrestlers, but is getting beat down, so regular “Doara” comes to his aid and jumpkicks the losers. The match helps regular “Doara” get the skillz he needs to be a true super mascot.