my secret agent theory
1st Episode - we see some random ahh cameramen, but they're actually secret chairs in disguise, the secret chairs are essential to understanding the lore of skibidi toilet.
There's a lot of evidence that the secret chairs helped the alliance to build the titans
In episode 18, we see titan cameraman, he's massive, you know what else is massive? The secret agent influence!! Yep, you heard it, the secret agent is agenting so hard he's secret. He created the secret chairs to make his secrets even more secret, however not all secrets are secret.
How was titan cameraman made? It's simple actually, he's a secret secret in disguise, the secret agent needed to make a secret so secret that it'd make all other secrets - secret. So, he decided to make titan cameraman, but how's he able to stand his own weight? it's simple actually, you see the secret agent actually thought of this problem, he solved it by making the secretium agentium, a completely new element. It makes everything secret, the law of physics just simply ignore this material because they're stupid and can't solve super secret secrets.
But what about the other titans? The secret agent secreted too hard, and it made the alliance realize how secret are secrets, so they decided to call the riddler, the riddler said: "I riddle and not secrettle, screw you" the alliance was so offended by riddler's response they decided to make everything secret. The secret agent saw this, he was very scared of the alliance being too unsecret, they suck at being secret, so he decided to give the alliance TSM and TTVM. These two titans are made of the secretius primus, an old ancient element that keeps all the secrets secret.
But what about g-toilet? G-Toilet is a secret buster, he was raised by the secret busters who wanted to bust all secrets of this universe. However they failed and they became evil, they called themselves: "Astro toilets"
G-Toilet betrayed the astro toilets because they suck at busting the secrets, so he decided to bust all the secrets all by himself. When he saw the titans he was scared of them, they were so secret and secret, it made g-toilet make his own secret. However the secret chairs watched all of this, and they decided to step in.
Ep 70 - Secret agent says bye bye to the scientist because he's actually a secret secret buster, so he dies, screw scientist
Later on the astros invade because they wanted to bust some secrets, they managed to capture some of the titans but their secret is not so secret anymore, their body elements were completely replaced by the nuhuim uhuim, a fake variant of the secretius primus, it makes fake secrets that are actually not secret but at the same secret.
Due to inviz taking over the creative control, we don't know how the story ends.