There's a bunch of them, hopping to and fro without a care in the world.

Yay! She eats them. 

Are there any other monsters or things that might be monsters around? 

Over by the river there's a brightly coloured slime, segmented like an orange into six rainbow parts: red, orange, yellow, green, blue, purple.

Oh cool!!! She runs over to eat it. 

It tastes FRUITY. The emphatic combination of cherry, orange, lemon, lime, raspberry, and grape is a little overwhelming.

Ohhhhhhh wow. 

She takes a little time to chill out on the riverbank and process the flavor, then gets up and looks around for more. 

There's a green slime hopping through the forest on the other side of the river, and a couple of dewdrop slimes bouncing past through the grassland, and another rainbow slime floating down the river, spinning gently in the current.

Rainbow slime! 

She darts off after it, but instead of popping it into her mouth whole, she tries to take a nibbling bite out of just the red section. 

This is difficult to accomplish with the slime bouncing and wiggling and slamming itself into her face at every opportunity. These things sure pack a punch for creatures made entirely of jelly. She successfully gets her nibble, at the cost of a bruised cheek and a noseful of assorted citrus.

So now she knows which flavor is red. She holds onto it more firmly with more tentacles, wrapping it up tightly to limit its ability to wiggle, and samples the orange. 

Orange, predictably enough, is orange!

Mm! Yellow?

Lemon!

And green is lime and blue is raspberry and purple is grape and this slime is now very dead and smeared all over her tentacles and face.

Okay, she wasn't expecting that. She licks slime goo off her tentacles and rinses her face in the river, then looks around for anything moving that isn't slime. Or is a kind of slime she hasn't seen yet. 

The river contains a number of fish, in varying sizes.

Ooh, fish. She snags a fish and eats it. 

It tastes fishy.

Yum. 

...She was promised monsters, dammit. The tasty slimes barely count. 

Fine. She heads back up the ice hill and towards the red area. 

The ice hill has another couple of frosted slimes, and the southern grassland has several more dewdrop slimes (and, indeed, two more enormous trees), and as she approaches the red area a northbound breeze blows a strong scent of blood into her face.

And when she gets closer than that...

The trees are, indeed, bleeding. The ground beneath them is soaked in blood, so thoroughly that it's hard to tell if the stuff under that clotted coating is grass, moss, dirt, or some other less natural thing.

A round red slime sails serenely out of the mess, spattering blood across the grassland and leaving behind a wet red smear with every hop.

That smells like human blood. She...does not eat that slime. 

She wanders cautiously into the bleeding forest. 

Another couple of red slimes pass her by, disinclined to bother her unless she bothers them first.

A... creature... approaches her. It's about ten feet long, with a mismatched abundance of long spindly legs, a snakelike body plated in chitinous armour, and glittering glaring gold slit-pupiled eyes scattered like warts all over its limbs and body. Its front end has a mouth that looks like it was designed by an artist with a vague description of spiders and an overactive imagination; there are teeth and teeth and more teeth and four pairs of chelicerae, each with its own side-mounted eyeball. Its long tapering tail has a serrated blade on the end, studded with eyes. Each of its legs ends in a slightly different design of nasty clawed foot with an eye on it.

Every single one of those eyes is staring straight at her, and blinking away tears of blood in its own unique rhythm.

It's moving purposefully, but not very fast. She could probably escape it if she turned and ran away right now. Unless it turned out to be good at sprinting.

No, she would instead like to lunge towards it and tear it to pieces. 

It snaps and slashes and struggles and manages to cut her pretty badly in a few places before she successfully kills it.

Once dead, it immediately blows apart into a dozen juicy monster chunks, plus assorted leg shrapnel. But the forceful shower of claw fragments bounces harmlessly off her skin.

The blood on its outside smells human, but the blood on its inside smells... monstery. Sort of sour, strongly metallic, with several unfamiliar overtones.

She eats as much of its insides as she can--it's not great, but not terrible either. She double-checks the blast zone for nifty items. 

A scattered handful of little stylized coins, and something else that's fallen too deep in the muck to be visible as more than a glint.

Another couple of spider-snake-eyeball-horrors show up while she's looking for loot.