Solution:
https://youtu.be/MkGihQi9xfo

Hint for the second part:
You can portal into the room with the fan while having access to orange gel if you jump through the orange gel portal (yes, you'll get cancer later but it's in the name of science!). Look for a useful walkway you can paint orange from that room.

Blindrun
Really good sequel to the first. Similarly tasteful aesthetics. Simple yet ingenious last puzzle that still took me a good 10, 15 mins to solve. Before that one I was gonna say how this was a lot easier than the original 😂

Difficulty: 4.75/10
Enjoyed: 8/10

me when i take the third, secret hormone
(good level!)

very clever. definitely up a notch in difficulty compared to some of your other maps I've played, but was still very doable for me and had a nice 'aha!' moment. sidenote; nice creative brushwork.

great map

This is a classic. The first time I played, I found the second half extremely difficult. I remember I spent a good 20 minutes there, jumping over fences, toggling on and off the fan, portaling all around the place, going downstairs and upstairs. It was maddening. Nowadays, I appreciate the beauty of the portal management skills required. It's amazing how utterly versatile portals are, both incoming and outcoming ones. Discovering how far you can link up two distant places with several seemingly impassable obstacles in the way is a lifelong journey.

I remember a year and a half ago I played this chamber and then I could not pass it, I returned! Very nice! =)

Medium difficulty it says......mmmm... indeed when you find the solution you might think it is simple, however, it took me some time to come at that stage.... Great fun in nice environment!

very fun map

Challenging map, the final orange gel puzzle connecting different areas gave me quite some trouble ^^'

OMG i solved it finally but thank you for putting so many hours ( i suppose ) in making your test.

I tried really hard to solve the second chamber, but no matter what I just could not get it. Not going to downvote it or anything, I'm sure I'm missing something but I really wanted to solve it. Tried at least two different nights to solve it, and spent several hours each time. So if anyone could give me tips, that would be great.

One of the harder puzzles I have completed. Very good.

Beautiful design, very cool puzzle. Go Pistons!

Good puzzle. Thanks for creating.

Amazing visuals, challenging puzzle. Thank you!

First get orange gel in every surface you can;
Get blue gel in both places;
Have portals in the two surfaces where the blue gel goes;
Go to the down level, and using the speed from the orange gel, jump before getting into the blue gel, that way, you pass the portal still getting down from the jump, landing on the blue gel present in the top level. Fly over the fence;
Now over the fence, place a portal on one of the two facing surfaces (the other portal is still in the down level);
Use the speed from the orange gel and get through the newly placed portal that leads to the blue gel, getting over the down level fence;
Now, place a portal on a low surface in this location (having the other portal in the top level);
Go through the portal, place a portal under the orange gel tube, having the orange gel go to the down level in that location;
Get to that location again, place a portal in the top surface, and use the speed to get through the portal in the low surface. Fly;

Great map, last puzzle got me stuck for a while,finally solved it.

Very cool map. The second puzzle was a little bit counter-intuitive. Beautiful environment as well. Big thumbs up!

Cool!

Awesome map with great puzzles. 2nd part was really difficult. Thank you!

Excellent map!

I couldn't complete it either. Looks like design has changed since walktrough video was posted.

I donot know but mine was broken as there was grill all the way in the place where fan pushes the blue gel, so I couldnt complete it.

nice map ! thks

Great maps, but the the solutions are beyond me. Couldn't even follow the walkthrough.

Brilliant map. 1st part I worked out and completed quite quickly; 2nd part took me longer; both parts are superb. Thank you

I especially enjoyed painting everything white after solving the first half of the puzzle :)

I agree with Makise Kurisu. The final part is really difficult ahahah. I've had to be thinking very much time haha. Thanks!!!

The final part is really difficult... I found some video but their maps are different with mine in detail...seems mine is the latest version. it took me nearly an hour to solve this, very nice map!

Wow! This was quite the challenge for me. Two parts had me stumped for a while. Very nice puzzles. Didn't care for the ending, but this map still gets a thumbs up.

very very nice map the last puzzle.....

Superb map. Took hours and several restarts. Great work!

Didn't solve it, but I realized while I was editing a video that your map was in where I went wrong. Hopefully I can get it the second time, because what I saw was really good! https://youtu.be/mnNqHjUVPC4

Bravo. I liked the idea of using the pistons as quasi faith plates but the real meat of the puzzle was in the last section where the intricate sequence required in the use of the gels and fan in order to reach the final goal. Absolutely brilliant and a lot of fun to play.

Didnt get the use of 2 white walls in the 2nd part.

Btw, I tricked around trying to get orange gel under the exit platform, I could keep some speed by bhopping there, placed a portal on the opposite site and reached the fan-lever-plateau using the blue gel. It's kinda unlucky. Speed is required at that point, bad thing not that much. Because bhopping gets some without orange gel. Pros might make it even if there wasn't that opposite site which allowed me to bhop straight while without, I would have had to bhop in a circular course, which is ... hard. But I would have given it a try. I actually did, because I didn't see the straight possibility at first. But ok. xD
Thank you so much, once again, for creating fraekin' awesome levels! :)

We all your maps! Keep up the good work, as usual.

Круто! Думал после белого геля конец, а там еще.

Transition 3

Really enjoyed this one! Looks good too! My favorite was the piston part.

I thought it was the exit... but nooooo!! The last room was a killer. Superb.

Very good map. I can bypass the fan and pistons.
Here is how: https://www.youtube.com/watch?v=H6mQ-hBe9KU
Keep up the good work!

(aka aFather): Great puzzle and graphics. Going to check out some of your other tests. Hate to say, this one was too hard for me after the Room 02. Had no idea of how to get to the next rooms, I had to look for the walk through, thanks to RectorRocks for that.

I'm hoping to see more transition maps — they're awesome!

I'm glad you put the second test back, but I still don't really like the abrupt ending, IMO the test would flow better if there was some kind of elevator at the end.

At least make a separate map containing only the second test.

You really need to reopen the second test — it's amazing!

My link didn't come out properly. Whoops. Here it is!
Playthrough video

Great puzzles! It's a little challenging but I liked it
Though I did spend an unnecessary amount of time in the second chamber just because I didn't see that portal surface to fling out of
https://www.youtube.com/watch?v=bxGbbTVqQ9w

Thumbs up!

Also, please don't remove sections of your map just because of the down votes. Most people on the front page of the workshop can only solve easy to easy-medium puzzles so when they can't solve a challenging one, they down vote it. Don't let it get to you, it just means that your puzzle is too smart for them.