Editing Bull's-Eye Bill

'''Bull's-Eye Bills''', formerly known as '''Missile Bills'''<ref>{{cite|date=June 1990|title=''Nintendo Power'' Volume 13|publisher=Nintendo of America|language=en-us|page=9}}</ref><ref>{{cite|author=Bueno, Fernando|date=November 15, 2009|title=''New Super Mario Bros. Wii'' PRIMA Official Game Guide|publisher=[[Prima Games]]|language=en-us|isbn=978-0-307-46592-4|page=16}}</ref> or '''Guided Missile Bills''',<ref>{{cite|quote=Red Guided Missile Bills move back and forth in search of their target.|date=Spring 1991|title=''NES Game Atlas''|publisher=Nintendo of America|language=en-us|page=36}}</ref> are heat-seeking variants of [[Bullet Bill]]s typically fired from [[Bull's-Eye Blaster]]s. They attack by homing in on the player. Prior to ''[[New Super Mario Bros. Wii]]'' introducing the current '''Search Killer''' (サーチキラー), which eventually became known in English as Bull's-Eye Bill, earlier games gave the homing abilities to normal Bullet Bills or their behavioral or color variations, as various sources treat them as.<ref name=SMCE>{{cite|quote=「おなじみの{{ruby|砲弾|ほうだん}}。{{ruby|普通|ふつう}}のキラーは、1{{ruby|方向|ほうこう}}にまっすぐ{{ruby|進|すす}}むだけ、『マリオ3』{{ruby|新登場|しんとうじょう}}の「{{ruby|往復|おうふく}}キラー」は、いったん{{ruby|発射|はっしゃ}}されると、{{ruby|左右|さゆう}}にいったりきたりを{{ruby|繰|く}}り{{ruby|返|かえ}}す。」|title=「スーパーマリオ{{ruby|全百科|オールひゃっか}}」(''Super Mario All Hyakka'', or "''Super Mario All Encyclopedia''")|page=192}}</ref><ref name=SMBHp36>{{cite|quote=「キラー砲台から発射され、まっすぐに飛んでくる。Uターンするタイプもいる。」("Fired from Killer Cannons, they fly straight ahead. There is also a U-turning type.")|author=Sakai, Kazuya (Ambit) et al.|date=October 19, 2015|title=''Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook'', ''Super Mario Bros. 3'' section|publisher=[[Shogakukan]]|language=ja|isbn=978-4-09-106569-8|page=36}}</ref><ref name=SMA3>{{cite|quote=「{{ruby|緑|みどり}}と{{ruby|赤|あか}}の{{ruby|砲台|ほうだい}}は{{ruby|固定式|こていしき}}で、{{ruby|黄色|きいろ}}の{{ruby|砲台|ほうだい}}は{{ruby|回転式|かいてんしき}}。{{ruby|赤|あか}}いキラーは ヨッシーを{{ruby|追|お}}いかけ、{{ruby|黄色|きいろ}}いキ ラーはかべに{{ruby|当|あ}}たるとはね{{ruby|返|かえ}}る。{{ruby|砲台|ほうだい}}を{{ruby|倒|たお}}すならアイス{{ruby|攻撃|こうげき}}で。」("''Green and red cannons are a fixed type, while yellow cannons are a rotatable type. Red Killers pursue Yoshi, and yellow Killers bounce off walls. The cannons can be defeated by an ice attack.''")|date=2002|title=「スーパーマリオアドバンス3任天堂公式ガイドブック」(''Super Mario Advance 3 Nintendo Kōshiki Guidebook'')|publisher=[[Shogakukan]]|language=ja|page={{file link|Advance 3 Shogakukan P15.png|15}}}}</ref> In some games, there are also regular Bullet Bills that perform similar functions to Bull's-Eye Bills, as seen in ''[[Super Mario 64]]'', ''[[Super Mario Galaxy]]'', ''[[Super Mario Odyssey]]'', Smash Run in ''[[Super Smash Bros. for Nintendo 3DS]]'', and sometimes in ''[[Super Mario Sunshine]]'' and ''[[Super Mario Galaxy 2]]''.

Though they appear in the [[Yoshi's Island: Super Mario Advance 3|Game Boy Advance version]], red Bullet Bills capable of following the player went [[list of Super Mario World 2: Yoshi's Island pre-release and unused content|unused]] in ''[[Super Mario World 2: Yoshi's Island]]''.

*'''Notebook bio:''' "''A friend of [[Bullet Bill]], this foe will try to seek you out from behind. You can jump over it with careful timing.''"

|Jpn=サーチキラー<ref>{{cite|author=Sakai, Kazuya (Ambit) et al.|date=October 19, 2015|title=''Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook'', ''New Super Mario Bros. Wii'' section|publisher=[[Shogakukan]]|language=ja|isbn=978-4-09-106569-8|page=145}}</ref><ref>{{cite|author=アルス(liaoallen)|url=www.youtube.com/watch?v=dSrk4JIW47U&t=3m41s|timestamp=03:41|title=Omoide Theatre, ''Yoshi Wool World''|publisher=YouTube|language=ja|accessdate=September 2, 2017}}</ref>

|Jpn3=リターンキラー<ref>{{cite|date=November 1988|title=スーパーマリオブラザーズ3 テクニカルマニュアル 3, supplement of ''Famicom Tsushin'' November 1988 issue|publisher=Famicom Tshusin|language=ja|page=34}}</ref><ref>{{cite|date=1993|title=''Nintendo Kōshiki Guidebook - Super Mario Collection''|publisher=Shogakukan|language=ja|page=216}}</ref>