Now, completing this Trial in roulette, I can say that:
1. At least one person fails it and wipes the whole group. I saw from one to three attempts, and after three people left the group most often.
2. Pressing two keys quickly or pressing one key slowly at a certain rhythm does not help. In the first case, the hand hurts, in the second, a guaranteed failure for me personally.
3. The only method that can work is to press several keys in a row without haste. But it doesn't work for everyone also.
4. 12 seconds is really a lot.
5. I prefer the Extreme version of this Trial, because it is more logical and my hands do not hurt from it.
I still don't understand why we need this QTE, and would rather prefer QTE from the battle with Susano.