InFamous 2 - How to unlock powers without spending XP
Unlock "aggratis" powers
We cannot take this glitch as 100% working. For me personally, it worked in some custom missions, but in others it didn't. I await your feedback in the comments, we may be able to understand what the discriminating factor is.
It seems that in InFamous 2 it is possible to unlock the various powers without spending the experience points required to buy them. To do this, you just need to buy the new powers while you are in a custom mission, that is, those created with the UGC level editor.
When you exit the mission you will have the new powers you just unlocked but also all the XP you had previously.
As said at the beginning, I await the feedback from your test!