- this guide is made with the assumption that you've already beaten the dlc and are familiar with its new creatures, regions, and endings. For the most part there aren't any story spoilers, though one of the screenshots does reveal that the watcher becomes a furry

- there are no watcher exclusive arena unlocks in any of the base game or downpour regions

- there's a popcorn plant unlock in farm arrays, I don't know if it's new or if I just missed it when getting all the unlocks last time, either way, it's in the big long room past the echo, on the screen before the one the coloured pearl is on.

- none of the rotted variants of base game regions have any unlocks in them, nor do unfortunate evolution or daemon

- every region with unlocks has 1 unlock for new arenas (the yellow ones), except for outer rim. Not all regions have a creature/item unlock (blue ones)

- every region has at most 3 unlocks total

- the first two endings give 4 unlocks each, similar to how the gourmand ending unlocks slugpups, while the third and fourth endings don't give anything (the two new endings)

- all of these regions are gonna be listed in the order I found them, rather than which ones are earlier/later regions, e.g. it goes sunbaked alley > aether ridge > torrid desert, rather than sunbaked alley > torrential railways > coral caves

Arena unlock on the top right end of the region, no other unlocks in sunbaked alley

past the scavenger toll there's two ways to go, left to the echo, or down to the room with the arena unlock

Big moth unlock in Aerial tramways, top right side of the region

Arena unlock in a hallway to the top right of the big tall room that also happens to connect to the aether ridge portal and a shelter

Drill crab unlock is along the path to the echo, underneath a little platforming section, if you fall down you'll find it, or if you take the pipe down you can walk over and find it, but you can't reach it unless you either have the float or you jump down from above

Arena unlock is in the scavenger merchant room, on the far right end of the region

Indigo lizard unlock is on a raised platform on the left side of the region, it's in the latter half of the big stretch of open locust filled rooms before you make it to the echo

The sand worm/sand grub unlock is in a little secret side room in the room with the popcorn plant. The entrance to the room is way above most of the room, you can't get there normally so you have to go around to an entrance that connects to a higher point in the same room, then make a jump overEntrance marked by my karma flower

Green sky whale unlock in this room, there are locusts on all sides, and you need to climb up and jump off the roof to get the unlock

arena unlock in the room with the badlands portal in it, you need the float to reach it, or some other height gaining technique I'm not aware of, since there's no geysers here like there are in verdant waterways

Paint unlock in a hole underneath the room the scavenger merchant is in

Arena unlock in a bubbleweed side room, connecting to one of the many fully underwater rooms with the anglerfish

Basilisk unlock in one of the platforming rooms, a moderate way right of the echo

Boomerang unlock in the room with the shelter, near the entrance to the region, on the ceiling

golden scavengers unlock in a side room on the left of the tall room connecting to the room with the echo in it, you need to jump to get to it, so you might need the float, might also be possible with some weird throw boosting trick, but then you need the float to get to that room in the first place, so you probably have one of those two things already

arena unlock in the high up surface room, past the echo.

Arena unlock in the roof of a big tube, right before a big jump to a portal on the far left of the region

Tardigrade unlock in the underground bottom part of the region, near the left entrance

pink-orange lizard unlock at the very top of that one huge open room on the left side of the region, only way to get to it is from a pipe connecting to the room top left of the desolate tract portal

arena unlock in a hidden room you can only access by going up the ceiling tunnels in a room on the right side of the region

need the float and/or spears to get up there

arena unlock on the ceiling of one of the train cars, to the right of the shelter room

barnacle unlock in a side room, roughly in between the room with the big pillar and the room with the verdant waterways portal

arena unlock in a middling sized room directly connecting to the big open room with the broken bridges

arena unlock in a sideroom on the left of the big huge tube with the shelter and the signal spires portal

melon unlock in the big wide open room preceding the fake gate, on the far right side of it

sky whale unlock in the lower sky whale room, on the right side on the ceiling, need a grapple worm or maybe some sky whale/float shenanigans to get to it

arena unlock in one of the tall rooms leading up to the echo, it's right next to the pipe so it's not hard to find

arena unlock in one of the tight tunnel rooms amidst the long underwater sections, lots of barnacles in the surrounding rooms, should be noted that you can hardly see the actual unlock plant when you first come in, but you can see it moving a little

anglerfish unlock in the room with the echo, on the left side, hidden above the top of the screen, you need the float or maybe a bunch of spears to get to it

arena unlock hidden at the top of another room, you can get to it by climbing a pole onto the roof from one of the open rooms, normally there would be wind forcing you to stay on screen but the one with the pole in particular lets you go to the next screen and find the secret room

loach unlock in one of the wide open rooms with loaches in them, on the left side of the region, above the little tunnels

arena unlock under a fruit room on the other side of a moderate stretch of snow dunes

blizzard lizard unlock to the left of the elevated shelter, up on the ceiling, in the central part of the region

arena unlock elevated on the far left of the region, above a shelter

rotted lizard(s) unlock in station annex, in a vine room that you need the float to get through, there's nothing else in the room

arena unlock in the side of a cliff, there's a little scavenger painted arrow pointing down to indicate that you can jump down that cliff, aside from that there's not really any way to know it's not a death pit instead

this was probably the worst unlock to find

arena unlock on the left of the precipice looking area, accessed by going right and up from the tower shelter

moth grub thing at the top of an open sky room full of spears, you can use the spears to climb up the wall on the right to get to it. I originally found the unlock by being dragged into the sky by a moth, so you might be able to get it that way too if you can get the moth to drop you at the right time or if you can cancel your fall with the float

arena unlock at the very bottom of a room with a lot of pipes leading throughout it, so many that you can't tell where any of them go because their routes overlap, left side of the region

frog unlock in an open room, several rooms to the left of the square shelter, I used the float to get to it, but you could probably get there with a squid or spear instead

box worm/sprite unlock near the shelter by the old echo spot, you need to take a weird roundabout route to get to it

arena unlock in thermal relay, in a wide platforming room preceding the new echo spot, right by a shelter

arena unlock to the right of the shelter nearest the echo

watcher character unlock way on the right side of the region, in the half of the region you can't get to from the throne, have to get there from daemon or a bad warp, it's on top of a big tower pretty high up

small moth unlock up high on the surface, on top of the roof sheltering the pipe leading to the vents

rat unlock in one of the sewer tunnels to the right, you can see it as you're first entering ancient urban as there's a little side tunnel in the same room that doesn't connect to the main tunnel, which you have to go through to get to the rest of ancient urban

arena unlock in a side room on the left side of the big vertical tube, the one connecting to the shelter right before the echo's room, it's about halfway up the big tube

that's all the unlock spots in the watcher, hope this comes in handy for all 23 arena fans that don't want to just cheat in all the unlockables

If you're reading this in the future just check the wiki instead for the exact map locations, I wouldn't recommend spending more time in the surface than you have to just because I couldn't think of any good recognisable reference points near the unlocks