- These hidden rooms are harder to locate as there are no obvious black rectangles, visible cracks or collectibles in awkward spots hinting something might be there etc etc stuff like that.
- Found in combat-levels (Not fully confirmed)
- Only one room needs to be found to get the achievement
- You can tell it is the strange secret room because usually a crudely drawn NPC will be present.
- Most of these rooms are meant to be found late-game or post end-game so they are difficult to reach and may require certain characters or upgrades though you can still find your own creative ways to do so.

NOTE : Some of these places may not trigger the achievement as I have no way to know whether or not it works after getting it myself. But do not worry, it's still fun to explore all the wacky stuff the devs hid across the world. Also the names aren't official, just randomly named by me.

<Hints>

1. World 1
2. Forest Level
3. 1-4
4. Last section of level
5. Near the exit door
6. It is possible to climb the large tree from the outside

<Answer>

<Hints>

1. World 1
2. Up in the skies
3. 1-8
4. Very beginning of the level
5. There is a spot you can barely stand on the other side of the pillars

<Answer>



This one doesn't have any weird NPC so I am assuming it will not count towards the achievement. Also you can be a total jerk and obliterate all the infinite spawning kittens for health drops D:

<Hints>

1. World 1
2. Forest and Sky level
3. 1-9
4. 2nd section of level
5. Search behind the clouds

<Answer>

<Hints>

1. World 1
2. Treetops
3. 1-11
4. First section of level
5. Look near the spot where you meet the first Blue Primian
6. Clouds come in handy when hiding stuff

<Answer>

<Hints>

1. World 1
2. Waterfalls
3. 1-13
4. It's like a secret within a secret
5. Start of 2nd section of level
6. WTF this is just another blue ruby room? Nope, search more carefully

<Answers>

<Hints>

1. World 2
2. Geysers
3. 2-12
4. 2nd section of level
5. The entrance to the room is off screen
6. There's a wooden ceiling that kinda stands out

<Answer>

<Hints>

1. World 2
2. Geysers again
3. 2-14
4. 2nd section of level
5. The section is single-screen and there are two spots on each side that look pretty SUS

<Answer>


This one can be entered from both sides.

<Hints>

1. World 4
2. Construction Site
3. 4-6
4. First section of level
5. At the very beginning of the level, defy your base gaming instincts and...
6. Go the opposite way

<Answer>


The way to the door is blocked by invisible crates so you need to shoot them first and also you need a character that can slide.

<Hints>

1. World 4
2. Downtown
3. 4-10
4. First section of level
5. Top of the section
6. Try hovering around the skies maybe something might be there

<Answer>

<Hints>

1. World 5
2. Spooky place
3. 5-11
4. 3rd section of level
5. At the beginning of the 3rd section, you can use the elevating platform to...?
6. Squeeze yourself into the gap between the spiky ceilings

<Answer>

That's all I could find after 3-4 loops of turning over stones in every single level. Sorry if I missed anything!