$1DF9:
00 - Nothing
01 - Hit head
02 - Contact (spin jump on a spiky enemy)
03 - Kick shell
04 - Go in pipe, get hurt
05 - Midway point
06 - Yoshi gulp
07 - Dry bones collapse
08 - Kill enemy with a spin jump
09 - Fly with cape
0A - Get powerup
0B - ON/OFF switch
0C - Carry item past the goal
0D - Get cape
0E - Swim
0F - Hurt while flying
10 - Magikoopa shoot magic
11 - Pause (stops music)
12 - Pause (resumes music)
13 - Enemy stomp 1
14 - Enemy stomp 2
15 - Enemy stomp 3
16 - Enemy stomp 4
17 - Enemy stomp 5
18 - Enemy stomp 6
19 - Enemy stomp 7
1A - Grinder (slightly louder than the one in 1DFA)
1B - Grinder (slightly louder than the one in 1DFA)
1C - Yoshi/Dragon coin
1D - Running out of time (combine this with the one in 1DFC, does not speed up tempo)
1E - P balloon
1F - Koopaling shrink/defeated
20 - Yoshi spit ("OW!")
21 - Valley of Bowser appears (a low, looping, rumbling noise)
22 - ?
23 - Lemmy/Wendy fall
24 - ?
25 - Blargg roar
26 - Firework whistle 1
27 - Firework bang 1
28 - Firework whistle 2 (louder than #1)
29 - Firework bang 2 (louder than #1)
2A - Peach pops up from the Clown Car
2B - Garbage? (a pop followed by two bass drums)
2C - Garbage? (a melody of pops)
2D - Garbage? (looping low music box)
2E - Garbage? (a looping melody of pops)
2F - Garbage? (a delayed melody of pops)
30 - ?
31 - Garbage? (a looping melody of pops and hi-hats)
80+- Time is running out! (includes tempo hike)

$1DFA:
00 - Nothing
01 - Jump
02 - Turn on Yoshi Drum channel (channel #5)
03 - Turn off Yoshi Drum channel (channel #5)
04 - Grinder
FF - Special value used to tell the SPC to get ready to download data.

$1DFB:
00 - Nothing
01 - Piano
02 - Here we go!
03 - Water Level
04 - Fight Bowser 1
05 - Boss Battle
06 - Cave Drums
07 - Ghost House
08 - Castle
09 - Mario Died (SFX)
0A - Game Over (SFX)
0B - Passed Boss (SFX)
0C - Passed Level (SFX)
0D - Have Star
0E - P-Switch (also known as Direct Coins)
0F - Into Keyhole (SFX)
10 - Into Keyhole (SFX)
11 - Zoom In (SFX)
12 - Switch Palace
13 - Welcome! (SFX)
14 - Done Bonus Game (SFX)
15 - Rescue Egg (SFX)
16 - Fight Bowser 2
17 - Bowser Zoom Out (SFX)
18 - Bowser Zoom In (SFX)
19 - Fight Bowser 3
1A - Fight Bowser 4
1B - Bowser Died (SFX)
1C - Princess Kiss ^^ (SFX)
1D - Bowser Interlude (SFX)
80 - Music fade (Also sets $1DFF to the written value)

$1DFC:
00 - Nothing
01 - Coin
02 - Hit a ? Block
03 - Hit a ? Block with a vine inside
04 - Spin jump
05 - 1up
06 - Shoot fireball
07 - Shatter block/Monty Mole popping from the ground
08 - Springboard
09 - Bullet bill shoot
0A - Egg hatch
0B - Item placed in reserve box
0C - Item falls from the reserve box
0D - Same as 0C
0E - L/R scroll
0F - Door
10 - Same as 09
11 - Drumroll start
12 - Drumroll end
13 - Lose Yoshi
14 - Unused? (In SMW2: Yoshi's Island it's the sound of a new level becoming available)
15 - Overworld tile reveal
16 - Overworld castle collapse
17 - Fire spit (Used by Yoshi and the Bowser Statues)
18 - Thunder
19 - Clappin' Chuck clap/bubble snap
1A - Castle destruction bomb
1B - Castle destruction bomb fuse
1C - Overworld switch palace block ejection
1D - Running out of time (combine this with the one in 1DF9, does not speed up tempo)
1E - Whistlin' Chuck whistle
1F - Yoshi mount
20 - Lemmy/Wendy lands in the lava
21 - Yoshi's tongue
22 - Message box/save prompt
23 - Mario moves onto a level tile
24 - P-switch running out
25 - Yoshi stomps an enemy
26 - Swooper
27 - Podoboo
28 - Enemy stunned/hurt (like Chargin' Chucks or the Koopalings)
29 - Correct
2A - Wrong
2B - Firework bang
2C - Firework whistle
2D - Podoboo (-100% pan) <- sound only comes out of the left speaker
2E - Podoboo (-71% pan)
2F - Podoboo (-43% pan)
30 - Podoboo (-14% pan)
31 - Podoboo (14% pan)
32 - Podoboo (43% pan)
33 - Podoboo (71% pan)
34 - Podoboo (100% pan) <- sound only comes out of the right speaker
35+- Mirror of $1DF9's sound effects, starting at the hit head sound