G:Metroid

C:Minimum Energy Of 30|SXSGNVSE|Galoob|
C:Infinite Rockets On Pick-Up|SZUILUVK|Galoob|
C:Gain 10 Rockets On Pick-Up|ZENSXLIE|Galoob|
C:Gain 15 Rockets On Pick-Up|YENSXLIE|Galoob|
C:255 Rockets On Pick-Up|NNNSXLIE|nintendo@pioneer-net.com|
C:Start With Over 1,600 On Life|NYXGVPLE|nintendo@pioneer-net.com|Warning: Don't get anything that gives you life.
C:1 Hit And You're Dead|YNSGNVSA|nintendo@pioneer-net.com|
C:Extra Energy|YAXGVPLA|Galoob|
C:Start With All Items And You Are Invincible|ALLGKP|asaic@escape.ca|Note: The `Ice Beam' will look unusual, but works normally. You do not start with any Energy Tanks or Missiles. A password will save the items, but not the invincibility.
C:If You Press The Start Button During A Game, You Go To The Password Screen|YAZGPP|nintendo@pioneer-net.com|
C:You Can't Pause The Game|YAZGZP|nintendo@pioneer-net.com|
C:You Start With No Energy|YAZKOP|nintendo@pioneer-net.com|
C:When You Get A Big Item, You Don't Have To Wait For The Music To Continue|YAGKSP|nintendo@pioneer-net.com|
C:If You Get A Big Item, You End Up At The Start With The Item|YAIKXP|nintendo@pioneer-net.com|
C:Start The Game Higher Or Lower Than Normal|YAAKVO|nintendo@pioneer-net.com|
C:Infinite Life|YAYGNP|nintendo@pioneer-net.com|After you die, press A direction and you come back to life with no energy.
C:Start More At The Left|YAPGNP|nintendo@pioneer-net.com|

T:Miscellaneous Codes

C:Go Through Walls While Rolled In A Ball|SSAEAI|"Evil_Spock" - Charles DuMarr|
C:Shoot While Falling To Get Stuck In A Wall|SSPALI|"Evil_Spock" - Charles DuMarr|
C:Get Stuck In A Wall While Flipping|SSAAAI|"Evil_Spock" - Charles DuMarr|
C:Bomb Sprite Plus Your Bombs Explode Twice|**NAPI|"Evil_Spock" - Charles DuMarr|
C:Your Bombs Explode Continuously (You Can Only Drop 3 Bombs Until You Deactivate This Code)|**NELI|"Evil_Spock" - Charles DuMarr|
C:Your Gun's Ricochet Sprite Plus The Ricochet Sprite Remains There Permanently (You Only Get Three Bullets)|**PAAI|"Evil_Spock" - Charles DuMarr|
C:Switches Pointing Up Samus With The "**" Values Plus A Door|**PEZI|"Evil_Spock" - Charles DuMarr|
C:Replaces Flipping Samus With Various Sprites|SOKKOS|"Evil_Spock" - Charles DuMarr|
C:Music Is "Stunted"|SSULUI|"Evil_Spock" - Charles DuMarr|
C:Produces Weird And Freaky Sounds|PUAUAI|"Evil_Spock" - Charles DuMarr|
C:Replaces The Second Note Of The "Elevator Room Song" With A Different Note|L*VLXV|"Evil_Spock" - Charles DuMarr|
C:Screen Goes Black After Start And Altered Music Plays|ENSKLO<BR>ENSKYO|"Evil_Spock" - Charles DuMarr|
C:Altered (Cool) Music And Changes Some Colors|ENSKLE|"Evil_Spock" - Charles DuMarr|Samus may de-atomize when hit
C:Throws Sound Registers Out Of Sync|PIGLEY|"Evil_Spock" - Charles DuMarr|Note: Most codes ending in TIK will cause changes in horizontal movement.
C:Samus Is Pulled To The Left|STATIK|"Evil_Spock" - Charles DuMarr|
C:Samus Is Pulled The Right|AAATIK<BR>ESGILG|"Evil_Spock" - Charles DuMarr|
C:Can't Go Left, Enemies Pass Thru You|GASTIK|"Evil_Spock" - Charles DuMarr|
C:You Warp To The Top Of The Screen When You Jump, Warp To The Left When You Press Left|AESGIL|"Evil_Spock" - Charles DuMarr|
C:White Samus Can't Jump|LOUTIU|"Evil_Spock" - Charles DuMarr|
C:Go Thru Walls To The Right|TTNTTT|"Evil_Spock" - Charles DuMarr|
C:Go Thru Walls To The Left (Works In Nesticle, Unlike TTXTTT)|TTXTYT|"Evil_Spock" - Charles DuMarr|
C:Samus Coasts Along|AOGKKS|"Evil_Spock" - Charles DuMarr|
C:Samus "Ice Skates"|ASLIKK|"Evil_Spock" - Charles DuMarr|
C:Samus Can't Flip|ZEXTAK<BR>KAXGEI|"Evil_Spock" - Charles DuMarr|
C:Screen Scrolls Over To The Left Or Right|STATXE<BR>STATOE|"Evil_Spock" - Charles DuMarr|Samus doesn't though, but appears next time the screen scrolls.
C:Crawlers Float Around|SXKOSX|"Evil_Spock" - Charles DuMarr|
C:Crawlers Are Messed Up, When You Go Thru A Door The Game Map Goes "Junky"|SPEEGG|"Evil_Spock" - Charles DuMarr|
C:There Are Large Pits In The Game Map At Periodic Intervals|SEATOX|"Evil_Spock" - Charles DuMarr|
C:Game Map Is Full Of Random Junk|LEPTON|"Evil_Spock" - Charles DuMarr|
C:Most Sprites Are Different (Character And Game Map)|ENSKLY|"Evil_Spock" - Charles DuMarr|
C:Bullets Ricochet Persists And Screen Flashes|**NSZI|"Evil_Spock" - Charles DuMarr|
C:When You Go Down Elevator It Takes You To Strange, Unpredictable Places With Weird Colors And Sprites|SSPEAA or SSPEYA|"Evil_Spock" - Charles DuMarr|
C:Zoomer Freezes On Activation|SSPEIA|"Evil_Spock" - Charles DuMarr|
C:When Zoomer Gets To Right Side It Jumps To Left Side And Freezes There|SSPETA|"Evil_Spock" - Charles DuMarr|
C:Samus Caught In A Molecular Scrambler|PKKISK|"Evil_Spock" - Charles DuMarr|
C:No Enemy Animation|AUZTLA|"Evil_Spock" - Charles DuMarr|
C:Missile Display Gone|AUITLA|"Evil_Spock" - Charles DuMarr|
C:Warp To Top Of Screen When You Jump|AUGTLZ|"Evil_Spock" - Charles DuMarr|
C:Don't Fall When You Walk Off Ledges (But You Do Fall After You Jump)|AUZTLL|"Evil_Spock" - Charles DuMarr|
C:Can't Go Right|ALITLL|"Evil_Spock" - Charles DuMarr|
C:Can't Jump|AULTLL|"Evil_Spock" - Charles DuMarr|
C:Go To The Left And You Rise Upward|AUITLL|"Evil_Spock" - Charles DuMarr|
C:Weird Jump (Try Jumping And Pressing In Certain Directions)|AUTTLL|"Evil_Spock" - Charles DuMarr|
C:You Are Pulled Up And To The Left|ALPTLG|"Evil_Spock" - Charles DuMarr|
C:Fall Thru Floor|AUZTLG|"Evil_Spock" - Charles DuMarr|
C:Background Is White|ALZTLT|"Evil_Spock" - Charles DuMarr|
C:Screen Doesn't Scroll To The Right|AUITLT|"Evil_Spock" - Charles DuMarr|
C:Screen Doesn't Scroll|ALLTLY|"Evil_Spock" - Charles DuMarr|
C:Play In A Black Void|LEPTUN|"Evil_Spock" - Charles DuMarr|
C:Can't Change Direction In Air|KAPGVI|"Evil_Spock" - Charles DuMarr|
C:Super Speed|*ENTIU|"Evil_Spock" - Charles DuMarr|
C:Fast Speed|EENTPU|"Evil_Spock" - Charles DuMarr|
C:Slooooow Speeeeeed|EENTAU|"Evil_Spock" - Charles DuMarr|
C:Ball Is Gone|LLLTUV|"Evil_Spock" - Charles DuMarr|
C:Bombs Where Ball Should Be|LLLVSV|"Evil_Spock" - Charles DuMarr|
C:Bombs Where Ball Is And Shifted Left|LLLTEV|"Evil_Spock" - Charles DuMarr|
C:Start With Long Beam|GAESGI|"Evil_Spock" - Charles DuMarr|
C:Enemies Pass Through You (ie. You're Invincible)|UNEYGO|"Evil_Spock" - Charles DuMarr|
C:Start With All Items And You Are Invincible|ALLGKP|Link|Note: Ice Beam will look unusual, but works normally. You do not start with any Energy Tanks or Missiles. A password will save the items, but not the invincibility.
C:If You Press The Start Button During A Game, You Go To The Password Screen|YAZGPP|Link|
C:You Can't Pause The Game|YAZGZP|Link|
C:You Start With No Energy|YAZKOP|Link|
C:When You Get A Big Item, You Don't Have To Wait For The Music To Continue|YAGKSP|Link|
C:If You Get A Big Item, You End Up At The Start With The Item|YAIKXP|Link|
C:Start The Game Higher Or Lower Than Normal|YAAKVO|Link|
C:Infinite Life|YAYGNP|Link|After you die, press a direction and you come back to life with no energy.
C:Start More At The Left|YAPGNP|Link|
C:Ssssslllllooooowwww Music|ZZZUNU|Neil|
C:Slow Music, Weird Basslines (Check It Out In Mother Brain Corridor)|ZZZUEU|Neil|
C:New Music|ZZZLUU|Neil|
C:No Music, Just Sound Effects|ZZZLUN|Neil|
C:At The Place Where There Is A Ball, There Is An Elevator, Graphics Are Different|LLLVKV|nintendo@pioneer-net.com|It takes you to the same place.
C:Go Up Through Ceilings (Helpful When Searching Through For The Hidden Worlds)|EEZTTY|Neutrino99@hotmail.com|
C:Enhanced Space Jump|KAPGEI|Neutrino99@hotmail.com|
C:Fire Up And You Fall Down Through The Floor|SUPEAI|Neutrino99@hotmail.com|
C:Normal Gun Is Lower To The Ground|AAESTL|brunsr@sunyit.edu|
C:No Background Music|ZZXLUY|brunsr@sunyit.edu|
C:Enemies Are Frozen (If You Touch Them, You Still Get Hurt)|XXUAAA|brunsr@sunyit.edu|
C:Enemies Are Weird|EEUAAA|brunsr@sunyit.edu|
C:There Is A Missile Were The Ball Usually Is|LLLVVV|brunsr@sunyit.edu|
C:Walk Through Walls When Facing Left|ZZZTTT|brunsr@sunyit.edu|
C:Different Music|ZZZUUU|brunsr@sunyit.edu|
C:Gives You 30 Energy Instead Of 5 After You Kill An Enemy|PPPSSS|brunsr@sunyit.edu|
C:Some Enemies Are Killed For You|PPPAAA|brunsr@sunyit.edu|
C:Reverse Direction Quickly To Run Backwards|AIPTZG|D.A.B|
C:Beam Has Longer Range|IIAIII|D.A.B|
C:Bullets Sometimes Ricochet Wildly Or Stick In Walls|IIPIIS|D.A.B|
C:Fire Both Missiles And Standard Hot|IIPIIU|D.A.B|
C:Pressing Fire Button Lays Bombs Even While Jumping|IIPIIX|D.A.B|
C:Stuck In A Jump|IIPTZL|D.A.B|
C:Pass Through Any Wall To The Left|TTXTTT|D.A.B|
C:Enemies Mess Up And Some Times Disappear|IIPSVT|D.A.B|
C:All Power-Ups (Except Ones Dropped By Enemies) Are A Half-Screen Width To The Left Of The Original Location|ZZZVVV|Super-Dude|That is, the power-up that changes you into a ball is "stuck to the wall".
C:High Jump|ZONGKNAP|Tony Hedstrom|Only works when you <b>Don't </b>have high jump boots.<br><br>NOTE: Credit goes to Parasyte for his excellent 6502 asm tutorial which helped me make these jump codes.
C:Mega Jump|GENGKNAO|Tony Hedstrom|Only works when you <b>Don't </b>have high jump boots.
C:Mega Jump|GENKSYZO|Tony Hedstrom|Only works when you <b>Do </b>have high jump boots.