Gigantic: Rampage Edition - All Heroes And Skins Showcase! 

Pretty annoyed they didn’t bother to make margrave mech skins available. They’re in the game, I accidentally accessed them through a glitch, but you can’t get them normally. Which given I don’t know how I did the glitch, or how to replicate it, really pisses me off, because they’re easily his best skins IMO

Do you have to pay actual money for those or can you just grind currency by playing games ? (I don't own the game , just curious)