D002-EDD5 No charging required for some special moves
DD47-8DD1 Some special moves can be done in the air
3C10-7467 + 3C10-74A7 Don't take damage except from throws or grabs--both players
DD10-7707 1st normal hit wins--except throws or grabs
1077-7F61 Dizziness doesn't last
4A9C-7FDF Both players start with 1/4 health
969C-7FDF Both players start with 1/2 health
609C-7FDF Both players start with 3/4 health
CB17-8FAD + 7D17-84DD Every hit sets opponent on fire
CB17-8FAD + F617-84DD Every hit sets the opponent on fire and knocks him down
CB17-8FAD + FC17-84DD Every hit zaps the opponent and knocks him down
CB17-8FAD + FA17-84DD Every hit knocks the opponent down
CB17-8FAD + DC17-84DD Every hit is a "hard hit"--opponent almost never gets 
knocked down

The next two codes don't work for the computer
CB79-EF61 + D579-EFA1 Players jump slower
CB79-EF61 + D879-EFA1 Players jump faster

DF81-E404 Each battle lasts only 1 round
FE0C-7FDD Speed up timer
9C0C-7FDD Slow down timer
3169-57A5 No delay after throwing fireball--Ryu and Ken
F122-E760 Player 2 starts right in front of player 1
1060-E405 Ryu's and Ken's hurricane kicks rise higher when done in mid-air
D1A9-1DBA Faster hurricane kicks--roundhouse
DBA9-1DBA Super fast hurricane kicks--roundhouse
D18C-74D5 Balrog has a faster turn punch--roundhouse
DB8C-74D5 Balrog has a superfast turn punch--roundhouse
D15E-8F60 Chun Li has a faster whirlwind kick--roundhouse
DB5E-8F60 Chun Li has a superfast whirlwind kick--roundhouse
DB2F-CD9A M. Bison has a super fast psycho crusher--fierce
1086-5D00 M. Bison does his psycho crusher in one place--fierce
D553-5F00 Vega has a superfast claw roll
1053-5760 Vega does his claw roll in one place
DB23-179A Deejay's dread kick is faster--fierce
DB23-1F9A Deejay's dread kick is faster--strong
D1BE-E7A0 Cammy has an erratic cannon drill
DDBE-E760 Cammy has a superfast cannon drill
D620-17FA Cammy has a superfast front kick--fierce
D620-149A Cammy has a superfast front kick--strong
D620-14FA Cammy has a superfast front kick--jab
D528-1D2A Feilong has a superfast rekka-ken--strong
D627-1F2A Feilong has a superfast rekka-ken--fierce

The following codes make the moves listed do heavy damage

Ryu

6E9D-8729 Jab dragon punch, close to opponent
6E9B-E429 Fierce red fireballs from far away
6E9D-E429 Roundhouse hurricane kick in the air

Ken

6E96-8721 Fierce dragon punch, close to opponent
6E92-8F21 Fierce fireballs, close to opponent
6E9A-5721 Roundhouse hurricane kick while on the ground

Blanka

6E1C-E720 Fierce forward ball
6E1B-7D29 Beast leap
6E15-ED20 Jab zap

Chun-Li

6E5D-7D20 Fierce fireball
DE10-5425 Down step
6E11-8425 Short lightning kick

Honda

6E99-8795 Jab hundred-hand slap
6E96-E495 Fierce torpedo
6E92-E795 Fierce sumo splash

Guile

6E16-5491 Fierce sonic boom
6E1E-7491 Roundhouse sonic kick, extremely close range

Zangief

6E51-EF90 Double spinning lariat (only certain hits)
6E5F-ED90 Spinning clothesline

Dhalsim

DE5E-8729 Yoga spear
6E5E-E429 Strong yoga flame (solid hit)
6E58-E729 Fierce yoga fire

Sagat

6E64-5F20 Roundhouse low tiger, from far away
6E62-7720 Fierce high tiger, from far away
6E53-ED25 Short tiger knee
EE27-479E Jab projectiles move slower for everyone but 

Sagat

EE20-4D2E Jab projectiles move slower for Sagat
EC20-4D9E Fierce projectiles move faster for everyone but Sagat
E520-4F2E Fierce projectiles move faster for Sagat

Vega

AE6A-8491 Fierce claw dive
6E62-8F91 Rolling claw attack
6E6E-EF91 Claw thrust

Balrog

6E6A-EF90 Fierce charging punch
6E62-E790 Roundhouse charging uppercut
6E69-5799 Fierce shoulder butt

Cammy

6EB3-5F20 Fierce spin knuckle
6EBB-5720 Roundhouse front kick
6EBF-5420 Roundhouse cannon drill, from far away

Hawk

6EB3-5F91 The Hawk

Fei Long

6EC7-5F20 Fierce slide punch (1st hit)
6EC0-5D20 Fierce slide punch (2nd hit)
6EC0-5720 Fierce slide punch (3rd hit)
6ECE-7420 Roundhouse dragon kick

Dee Jay

6EC5-EF99 Fierce hyper fist (1st hit)
6ECF-7D91 Fierce Max Out
6EC3-8F99 Roundhouse dread kick