Quote: juarmoNightmoon was right.
You only get 1 secret technique per battle class through scanning Senseis.
then you get 1 for beating the boss of that battle class.
Then you get 2 more by leveling, 1 at level 2, and 1 at level 5.
One at level 2, one at level 4.
Elemental attacks are unlocked at level 3 and 5.
Also, as requested...
Sorcerer Sensei Secret Technique: Magic Upheaval
- Golden Queen "I Reign Supreme" (Quotes from the Wiki)
Level cap raise: "Behold, as I make all of your Imaginators more powerful than before!"
Secret Technique: "And if anyone from the Sorcerer class wants to be the gold standard, they'll need my Secret Technique."
- Dr. Neo Cortex *evil laugh*
"Let's get those Imaginators ready for total world domi- I mean, possibly, heroic do-gooding, a-and stuff."
Secret Technique: "And when you want to put your mind to learning some Secret Sorcerer Techniques, you just say so."
Knight Sensei Secret Technique: Ground Stab
- Ambush "Weed'em and Reap!" (Quotes from the wiki)
Level cap raise: "Portal Master, I can teach your Imaginators the ways of nature, and no one, no one wants to mess with nature."
Secret Technique: "And as a Knight, I am familiar with a Secret Technique that other Knights can learn. Too bad for everyone else."
Bowslinger Sensei Secret Technique: Lob Shot
- Wolfgang "Let there be rock! *howls*"
Level cap raise (Wiki quote): "Ready to rock, Portal Master? Good! Now let's turn the volume up on your Imaginators!"
Secret Technique: "And here's a little Secret Technique (inaudible) just for the Bowslingers."
Sentinel Sensei Secret Technique: Hypnotize
- Ember "Fan the Flames!" (Quotes from the wiki)
Level cap raise: "It is wise, Portal Master, to allow me to train all of your Imaginators and make them stronger."
Secret Technique: "And it is wiser still to allow me to show those of the Sentinel Class, a Secret Technique of great power."
- Hood Sickle "Any Last Words?"
Level cap raise: "If you wanna give your Imaginators power that is truly a cut above, I am the Sensei for the job."
Secret Technique: "And I have a Secret Technique that will no doubt give your Sentinels the edge."
Smasher Sensei Secret Technique: Here Comes the Pain
- Tri-Tip "Face the Mace!" (Quotes from the wiki)
Level cap raise: "You have chosen wisely, Portal Master! My club smashes all and can make your Imaginators more powerful!"
Secret Technique: "And no one smashes like a Smasher, especially with this Secret Technique!"
- Chopscotch "Chop 'Till you Drop"
Level cap raise: "This ghoul is here to take your Imaginators to school."
Secret Technique: "And if they're of the Smasher Class, I'll show them a Technique that's a total gasp."
Brawler Sensei Secret Technique: Dashing Uppercut
- King Pen "Stay Frosty!"
Level cap raise (Wiki quote): "As you know, I'm a Sensei, which is A; awesome, and B; means I can train your Imaginators."
Secret Technique: (Inaudible in FGTV's footage, can't find it anywhere else.)
- Crash Bandicoot *poses and winks* (Quotes from the wiki)
Level cap raise: "Fear not, Portal Master. I, the wise Aku Aku will act as transmitter for Crash Bandicoot, and assist in making your Imaginators more powerful then ever!"
Secret Technique: "And if there are those who have chosen the noble path of Brawler, Crash will train them in a lost Bandicoot-granted Secret Technique!"
Quickshot Sensei Secret Technique: Gunslinging It
- Dr. Krankcase "The Doctor is in!"
Level cap raise: "Somebody call a doctor? Well I've got the prescription for all your Imaginators."
Secret Technique: "And I've got a PhD in teaching Secret Techniques to the Quickshot Class."
All the ones we know so far (or at least, that I know of)
EDIT: Forgot Kaos AGAIN
- Kaos "Behold, my Catchphrase of Doom!"
Level cap raise: "Greetings, Poser-Master! It is I, Kaos! And in a bizzare twist of fate, I will make your stupid Imaginators stronger than ever!"
(Not bothering with the ones we only know the catchphrases of.)