How to restore the Shrinking-Animation in Sonic 1

Here it is!

Sonic 1 contains an unused Animation: The Shrinking Animation. It's most likely an earlier Version of the Death-Animation. You can see this Animation in Sonic 1 Harder Levels or on Sonic Retro. I will tell you one of the easiest ways to add this into your Hack.
So here we go:

1.: Open "_anim -> Sonic.asm".

2.: Search for:

Code:

SonAni_Death1: dc.b $20, $4B, $FF, 0
SonAni_Drown:  dc.b $2F, $4C, $FF, 0
SonAni_Death2: dc.b 3, $4D, $FF, 0
SonAni_Shrink: dc.b 3, $4E, $4F, $50, $51, $52, 0, $FE, 1, 0

3.: Create Backups! and split the Text (if you want):

Code:

SonAni_Death1:  dc.b $20, $4B, $FF, 0
;SonAni_Death1: dc.b $20, $4B, $FF, 0

SonAni_Drown:  dc.b $2F, $4C, $FF, 0

SonAni_Death2:  dc.b 3, $4D, $FF, 0
;SonAni_Death2: dc.b 3, $4D, $FF, 0

SonAni_Shrink:  dc.b 3, $4E, $4F, $50, $51, $52, 0, $FE, 1, 0

4.: And now, copy everything from "SonAni_Shrink:" and replace the "...Death1:" and "...Death2:":

Code:

SonAni_Death1:  dc.b 3, $4E, $4F, $50, $51, $52, 0, $FE, 1, 0; NEW DEATH ANIMATION
;SonAni_Death1: dc.b $20, $4B, $FF, 0; ORIGINAL DEATH ANIMATION

SonAni_Drown:  dc.b $2F, $4C, $FF, 0

SonAni_Death2:  dc.b 3, $4E, $4F, $50, $51, $52, 0, $FE, 1, 0
;SonAni_Death2: dc.b 3, $4D, $FF, 0

SonAni_Shrink:  dc.b 3, $4E, $4F, $50, $51, $52, 0, $FE, 1, 0

5.: Save and Build! Test it!

6.: It's a little bit too fast. To fix this:

Code:

SonAni_Death1:    dc.b 3, 3, $4E, $4E, $4F, $4F, $50, $50, $51, $52, 0, $FE, 1, 0
;SonAni_Death1:    dc.b $20, $4B, $FF, 0

SonAni_Drown:      dc.b $2F, $4C, $FF, 0

SonAni_Death2:    dc.b 3, 3, $4E, $4E, $4F, $4F, $50, $50, $51, $52, 0, $FE, 1, 0
;SonAni_Death2:    dc.b 3, $4D, $FF, 0

SonAni_Shrink:    dc.b 3, $4E, $4F, $50, $51, $52, 0, $FE, 1, 0

It should be slower now.

That's it! Have fun!

Credits:

Original guide from SMPS Archive (RIP).
Selbi for writing the guide.
Irixion for guide cleanup.

Just an annual year bump!