#rustling.

based on this squish toy i have!

The skin seems to go first. You expected it to be clearer, since the end goal is a slime creature after all, but as the enzymes slowly dissolve away the layers of the body, they form a sort of unpleasant murky color. The instruction booklet assured you that through the process, as the old body is fully digested, your true colors will shine through. You wonder idly what color you'll become... The long-held human definition that you knew is slowly giving way to something amorphous, and you watch it all happen with a cautious optimism. It seems like all that's holding you together is a thin membrane, stretching taut against the weight of your fluids. A fine sheen covers your eyes, blurring your vision, but not enough to fully obscure anything from you. You fight back the urge to blink it away.

The muscles dissolving feels the most startling. Even with the dulled senses, nothing really prepared you for the loss of control over the body that occurs. A spasm thrills over you as the threads of musculature snap and separate, bones floating uselessly, and you clumsily seem to fall over-- if you even have an up or down anymore. Now we're really getting away from the human form... This, too, is something you will be able to master in your new body. You pool around yourself and you struggle to keep your senses pointed enough towards the transition happening before you.

The enzymes work their way through your old body, and you have to strain yourself to watch. The vessels release their blood, your new viscous body forming a sort of opened circulatory system. You sink further towards the floor as your bones dissolve and more of your organs come into view. Curiously, the nerves seem to linger behind, and you wonder how long those are going to stick around.

Your old organs twitch and float in their pool, and part of you wants to hold your breath in anticipation as you watch the lungs dissolve-- but the diaphragm has gone, the nostrils have filled, and the attempt can hardly be called such a thing. Creeping fear turns into wonder as the lungs, intestines, even heart, gradually disappear into your ether. As far as you know the nervous system must still be there, your eyes (glazed over with slime as they are) still taking in the sight of your spiderweb nerves drifting languidly, your senses still aglow, your mind still processing.

It's hard to recall what happens next. You can only assume what happened based on your instruction booklet and from the first-hand accounts you had been reading up on before you undertook the change.

As your body fades from a muddy red to an otherworldly blue (this must be your color!), the transition process works upon your nervous system. It's as if your mind glitches out-- for what feels like just a moment. The brain and its nerves may look to the outsider like they've disappeared, but they've changed insurmountably, all senses rearranged.

When your eyes (what you can only assume are eyes based on prior experience) adjust, it's like waking up from anesthesia-- time has passed in a snap without your awareness. You stare blankly at the ceiling, letting your mind wander. In an attempt to look at your body, your eyes roll in their place, looking further into the nondescript puddle of blue slime on the floor. A giddy happiness overthrows the tired confusion that reigned moments before-- it worked!! Your species has changed, and you couldn't be any happier.