Metal Slug: Commander is a card game in which players build a deck of five units to battle against the opponent's deck. The game also offers a ton of in-game items in the stores that players can buy using Arena Coins and Gems. Players can earn these currencies by winning matches and ranking up, but sometimes there might be a shortage. In that case, you can use Metal Slug: Commander codes to get yourself some free stuff. How to redeem Metal Slug: Commander codes Image via SNK China Open Metal Slug: Commander on your device. Then, click on you profile picture on the top left corner of the main screen.Now, go to the Settings tab and tap on the Activation Code.Copy the code and paste in the Activation Code section.Tap the Confirm button to claim your rewards. Working Codes It is advised to redeem the Metal Slug: Commander codes as soon as possible since they will be valid for a limited time period only. METALSLUG2021 \u2013 100k Arena Coins and 300 Gems Expired Codes There are no expired codes at the moment.