
* = Can be obtained by a glitch than occur when the player buy more than 5 medal packs during the 1.17.0 medal promo. These units are Amadeus Robot, Cyborg Allen O'Neil, Hazmat Soldier, Hazmat Soldier(Green), Researcher, Pirate Assault Soldier, and Pirate Soldier.

In addition to these units, buffed versions of several units with far more HP than normal appear in the Amadeus Event. These units only appear in certain stages, some as bosses, and are unavailable to players without cheating.

You can't just make a deck of premiums and expect to win online, though - if you miss certain event units, then it can be quite a while until decent equivalents become available.įor example, currently one of the most "useful" units in the game is a recoloured version of the Invader Parasite, which was unlocked during a guild-based event.Zombie (Young Man) List of Units Starting Units It's much like the point collection system MSD's co-op mode uses, but as each new event starts, access to the old event's rewards closes off.Īlongside the "free" event units you've got medal-driven gachas, unlocking "premiums" which're usually much more powerful. Each week there's an "event" where you grind battles against the AI to earn rewards such as medals and to unlock more units. The main difference between the two is that you can put MSD down for a week and nothing is lost, whereas with MSA you'll fall behind if you take a break. So rather than disrupt everyone's MSD installs, they just stopped developing under the MSD title and re-released the game as Metal Slug Attack. The only real "fix" for this was to reset everyone's progress and make the game always online. The issue SNK had with Metal Slug Defense is that hackers figured out how to easily grant themselves unlimited amounts of medals, the game's premium currency.
