To truly beat Suicide Squad: Kill the Justice League, you need to start collecting some Promethium in order to take on the toughest challenges in the game. Luckily, earning some is easy if you know where to look, and I’m here to point you in the right direction.
How to Earn Promethium in Suicide Squad: KTJL
Promethium is earned by completing missions such as Giant Gun Fun around Metropolis after you defeat the Justice League. If you just finished fighting Superman, then there are only three missions you can do to collect more of the new currency. One is the Giant Gun and the other two are based on taking down the terraformers that spawned from the skull ship.
