Tales of Symphonia - Nintendo GameCube

Colette can learn Holy Song & Judgement (if you don't have these attacks yet, you will receive them at a certain point from Remiel). Once you have performed Holy Song and Judgement 50 times (not in 1 battle, of course), you can try out the secret attack Holy Judgement.
1) Start by trying the attack `Holy Song`. Usually, when you attempt this attack, you will see `Target` above one of your characters.
2) When you see that, press `X` to stop the attack and try again. If you don't see `Target`, don't press any button.
3) Colette will then start acting weird (very weird).
4) Just wait, and you will see on the top of your screen that you are performing the attack `???`. In reality, this is just Holy Judgement.
5) Colette will perform Holy Song & Judgement simultaneously, creating a powerful effect!

You'll receive Lloyd's strongest sword after defeating the Sworddancer three times. The Sworddancer is a very tough boss (especially the first two times). They're only available for a limited time so don't wait too long; if you miss one, you'll miss the next one too!
You can find the first one in Ossa Trail (in that mine where you dropped that purple-dressed girl) in Tales of Symphonia. I defeated it when everyone was around level 15. But make sure to beat it before heading to the Tower of Salvation.
The second one can be found in Gaorrachia Forest (head south from the Savepoint). This one has become a lot stronger! I managed to defeat it when I was at level 50, but you won't be able to defeat it if you have to switch to Disc 2.
The last one can be found at the end of Iselia Forest. This one has 99,999 HP, but now it's easier to defeat, and I didn't die once (I was at level 70). I used Sheena, Genis, Colette, and Raine. You can only defeat it if you have the Derris Emblem (which is right at the end of the game).
After that, you'll obtain Lloyd's strongest sword: the Kusanagi Blade.

First the gald: In the earth-temple in Tathe'alla, there's a dragon lurking behind an easy entrance. Quite strong, but you earn a huge amount of gald each time and some nice exp. And guess what? He comes back every time, but with slightly less exp; the amount of gald remains the same! Nice way to earn!
Now for the secret Tech: It's called Falcon Crest and it's for Lloyd. When Lloyd is in a tight spot (low hp and tp) and you press b, a, x simultaneously, he performs his secret tech that costs no tp. In a flash, you'll see his eyes at the top of the screen in anime style, and his attack begins...