Not really sure where to start with the Lightning Link pokies, to be honest. It has so many different features embedded that it almost gets confusing but at least the majority are free spin games. Not too dissimilar to other slots released in that regard.
I won't go into every feature - there are 8 in total - except to say that they involve things like sticky wilds, expanding wilds, wild reels and more. I'd hazard a guess that they all pay out roughly the same long-term as the game lets you choose which feature you want - once you have unlocked them all.