GlassGo wrote:...can hit one target multiple times - works as intended?
Also it should jump 7 times, but here I see more.

Haven't checked the code, but I will guess it may be like this:
One enemy may only be "targeted" once, however, when the lightning going to its next target, because the lightning is a beam, it will also hit everyone in its path.
In that case, even only one enemy can be 'targeted' once, it may be 'hit' for multiple times on the path, if the enemies are very clustered.