View source for DP012

{{EpicodePrevNext
|prevcode=DP011
|prevtitle=Mounting a Coordinator Assault!
|nextcode=DP013
|nexttitle=A Staravia Is Born!
|series=Pokémon the Series: Diamond and Pearl
|colorscheme=Sinnoh}}
{{EpisodeInfobox
|epcode=DP012
|altepcode=EP478
|colorscheme=Sinnoh
|title_en=Arrival of a Rival!
|title_ja=コンテストバトル！ライバル対決！！
|title_ja_trans=Contest Battle! Rival Confrontation!!
|screen=yes
|broadcast_jp=December 14, 2006
|broadcast_us=June 21, 2007
|en_series=
|en_op={{so|Diamond and Pearl}}
|ja_op=[[Together]]
|ja_ed=[[By Your Side ~Hikari's Theme~|君のそばで 〜ヒカリのテーマ〜]]
|olmteam=Team Iguchi
|scenario=冨岡淳広
|storyboardn=1
|storyboard1=日高政光
|directorn=1
|director1=渡辺正彦
|artn=1
|art1=志村泉
|morecredits=yes
|epstaffpage=DP011-DP020
|footnotes=*{{filb-eppics|dp|012}}
}}
'''Arrival of a Rival!''' (Japanese: '''コンテストバトル！ライバル対決！！''' ''Contest Battle! Rival Confrontation!!'') is the 12th episode of ''[[Pokémon the Series: Diamond and Pearl]]'', and the 478th episode of the [[Pokémon anime]]. It first aired in Japan on December 14, 2006 and in the United States on June 21, 2007.

{{spoilers}}