Editing Bull's-Eye Bill

|image=[[File:Bull's-Eye Bill SMR.png|200x200px]]<br>In-game artwork from ''[[Super Mario Run]]''

|variants=[[Bull's-Eye Banzai]]<br>[[Renketsu Search Killer]]<br>[[Targeting Ted]]

'''Bull's-Eye Bills''', formerly known as '''Missile Bills'''<ref>{{cite|title=''Nintendo Power'' Volume 13|page=9|date=June 1990|publisher=Nintendo of America|language=en-us}}</ref><ref>{{cite|author=Bueno, Fernando|title=''New Super Mario Bros. Wii'' PRIMA Official Game Guide|page=16|date=November 15, 2009|publisher=[[Prima Games]]|isbn=978-0-307-46592-4|language=en-us}}</ref> or '''Guided Missile Bills''',<ref>{{cite|date=Spring 1991|title=''NES Game Atlas''|page=36|quote=Red Guided Missile Bills move back and forth in search of their target.|language=en-us|publisher=Nintendo of America}}</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|title=「スーパーマリオ{{ruby|全百科|オールひゃっか}}」 (''Super Mario Zen Hyakka'', or "''Super Mario Complete Encyclopedia''")|page=192|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。」}}</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.|language=ja|publisher=[[Shogakukan]]|date=October 19, 2015|title=''Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook'', ''Super Mario Bros. 3'' section|page=36|isbn=978-4-09-106569-8}}</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.''")|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]]|date=2002|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]]''.

[[File:NSMBW World 9-3 Screenshot.png|thumb|250px|Missile Bills from ''New Super Mario Bros Wii'']]

Missile Bills appear in ''[[New Super Mario Bros. Wii]]''. Despite having the same name of the flashing Bullet Bills of ''Super Mario Bros. 3'' in the [[Prima Games]] guide, their Japanese name indicates that this game is the first one to use its modern iteration. They resemble normal Bullet Bills, but when one sees Mario, it will make a beeping noise and start flashing red. Here, they have a similar attack pattern to the one they had in ''Super Mario Bros. 3''; however, in this game, they can change the angle they are flying at and will not stop pursuing the player until they are defeated, or the player has gotten far enough away. They can be defeated the same way as normal Bullet Bills. They only appear in [[World 9-3 (New Super Mario Bros. Wii)|World 9-3]], alongside [[Bull's-Eye Banzai|red, Mario-seeking Banzai Bills]].

In ''[[New Super Mario Bros. U]]'' and ''[[New Super Luigi U]]'', Missile Bills only appear during the [[Roy|Roy Koopa]] battle at [[Rock-Candy Mines]]. When Roy is jumped on at least once, he occasionally fires a Missile Bill out of his Bullet Bill cannon. If these Missile Bills are neither eliminated nor successful in hitting their target within a short amount of time, they eventually detonate. Starting from this game, Missile Bills keep their red coloration instead of being normal Bullet Bills flashing red. A [[Torpedo Ted]] equivalent, the [[Targeting Ted]], homes in on Mario in a slightly different manner, but it also eventually self-destructs when it is onscreen for too long.

Although no normal Bull's-Eye Bills appear in ''[[Super Mario Bros. Wonder]]'', a [[Renketsu Search Killer|new variant]] consisting of multiple segments and dorsal fins does.

Bull's-Eye Bills make their non-[[reissue]] debut in the [[Yoshi (franchise)|''Yoshi'' franchise]] in ''[[Yoshi's Woolly World]]'' and ''[[Poochy & Yoshi's Woolly World]]''. They are made out of red wool which can be turned into [[yarn ball]]s if Yoshi eats them. They can only be found in [[Knot-Wing the Koopa's Sky Fort]], where they are launched from [[Bull's-Eye Blaster#Yoshi's Woolly World / Poochy & Yoshi's Woolly World|red Bill Blaster]]s in the level itself, as well as during the boss fight with [[Knot-Wing the Koopa]], where they are launched from the boss's Bill Blaster in addition to Bullet Bills.

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."''

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

|JapR=Sāchi Kirā

|JapM=Search Bullet Bill

|Jap2=キラー<ref name=SMBHp36/><ref name=SMA3/>

|Jap2R=Kirā

|Jap2M=[[Bullet Bill#Names in other languages|Bullet Bill]]

|Jap2N=''Super Mario Bros. 3'', ''Yoshi's Island: Super Mario Advance 3''

|Jap3=リターンキラー<ref>{{cite|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|page=34|publisher=Famicom Tshusin|date=November 1988|language=ja}}</ref><ref>{{cite|publisher=Shogakukan|date=1993|title=''Nintendo Kōshiki Guidebook - Super Mario Collection''|page=216|language=ja}}</ref>

|Jap3R=Ritān Kirā

|Jap3M=Return Bullet Bill

|Jap3N=''Super Mario Bros. 3''

|Jap4={{ruby|往復|おうふく}}キラー<ref name=SMCE/>

|Jap4R=Ōfuku Kirā

|Jap4M=Roundtrip Bullet Bill

|Jap4N=''Super Mario Bros. 3''