Let’s address the elephant in the room. The keyword includes "NSP" – Nintendo Submission Package – which refers to the installable file format used by hacked Switches (Atmosphere, SX OS, etc.).
If you are looking for the new update in NSP format, you are likely trying to manually update a backup copy of the game. As of this writing, the latest update files (v1.1.0, ~350 MB) exist in the wild, usually labeled as Metal Slug Attack Reloaded [0100F5A01B2A4800][v65536].nsp.
Important notes for scene users:
However, we strongly recommend purchasing the game legally if you enjoy it. SNK has a history of abandoning ports that don’t sell well. Supporting the official release ensures future Metal Slug games come to Switch.
For those tracking the latest for Metal Slug Attack Reloaded
on Nintendo Switch, the game recently received a major free content update that significantly expands the roster and gameplay. As of April 2026, the game is also confirmed to be fully compatible with Nintendo Switch 2 株式会社SNK Latest Update Highlights (v1.1.0+)
The most recent major expansion added a wealth of content to the base game: 20 New Units:
The roster now exceeds 320 characters, featuring the brand-new Reika for Liberty and fan-favorites like Christmas Midori Everlasting Summer Abigail New Stages & Scenarios: High-difficulty Everlasting Summer
campaign scenarios have been added to the "Another Story" mode. Quality of Life Improvements: Batch Evolution: Evolve multiple units at once to save time. Post-Battle Skip: Faster progression through repetitive farming. Streamlined Leveling:
Simplified unit acquisition and leveling mechanics to reduce the late-game grind. 株式会社SNK Key Game Info
$9.99 (one-time purchase, no mobile-style microtransactions). Approximately on Switch. Multiplayer: Requires a Nintendo Switch Online membership for world-wide online battles. Nintendojo If you are looking for the latest or update files, they are available through the official Nintendo eShop
Are you focusing on building a specific faction deck, or are you just getting started with the new units?
Metal Slug Attack Reloaded: New Update & Switch NSP Guide Metal Slug Attack Reloaded has recently received a major free content update, bringing a fresh wave of units, modes, and quality-of-life improvements to the beloved tower defense spin-off. This update is essential for Nintendo Switch players looking to maximize their deck's power and explore new storylines. New Content & Patch Highlights
The latest update for Metal Slug Attack Reloaded (released in late 2024 and continuing into early 2025) significantly expands the game’s roster and replayability:
Expanded Roster: A total of 20 new units have been added, including the brand-new "Reika for Liberty". Other returning favorites from the mobile era, such as "Christmas Midori" and "Everlasting Summer Abigail," are now permanently available.
New Scenarios: The update reintroduced the Christmas and Everlasting Summer campaigns with increased difficulty levels. Completing these unlocks exclusive character portraits and gallery assets.
Quality of Life Improvements: SNK implemented a batch evolution system and a post-battle skip feature, making the grind for leveling up your 300+ units much smoother. metal slug attack reloaded switch nsp update new
Level Cap Increase: Players can now push their account level beyond the previous limit, reaching a maximum of Level 99 to gain additional sortie points. Understanding the Switch NSP & Updates
For Nintendo Switch users, maintaining the latest version is crucial for online play and accessing new units.
Version History: While the base game launched as version 1.0.0, the latest stable update has reached v1.0.3 on the Switch. This version includes the major content drops and various bug fixes.
File Size: The base NSP file for Metal Slug Attack Reloaded is approximately 1.7 GB. Updates add a small amount of additional data to this footprint.
How to Update: You can download the latest update directly from the Nintendo eShop. For those using backup files, ensure your NSP is paired with the corresponding v1.0.3 (or later) Update NSP to avoid compatibility errors during gameplay. Gameplay Tips for the New Meta
With the addition of the new "Reika for Liberty" unit and the increased stage difficulty, your strategy may need to shift: YouTube·SNK OFFICIAL 【ENG】METAL SLUG ATTACK RELOADED｜Update Trailer
The latest major update for Metal Slug Attack Reloaded on Nintendo Switch, released in late November 2024, introduced several helpful features focused on streamlining progression and expanding content. Key Helpful Features & Quality of Life (QoL) Updates
Batch Evolution: A highly requested feature that allows players to evolve multiple units at once, significantly reducing time spent in menus.
Post-Battle Skip: New options to skip certain post-battle screens were added to make the repetitive gameplay loop faster and more seamless.
Streamlined Leveling & Acquisition: The update improved the mechanics for acquiring new units and leveling them up, making it easier to bolster your deck without excessive manual navigation. New Units & Content:
20 Additional Units: This includes the new "Reika for Liberty" and returning fan favorites like "Christmas Midori" and "Everlasting Summer Abigail".
Expanded Campaigns: The update reintroduced the Christmas and Everlasting Summer campaign scenarios with high-difficulty stages.
Gallery Assets: New high-resolution character portraits and gallery assets were added for collectors. Core Game Features (Reloaded Version)
Since this "Reloaded" version is a premium console port of the original mobile title, it includes several built-in "helpful" changes from the start:
Removal of Microtransactions: All units and items are now earned through gameplay rather than real-money purchases. New Exclusive Character : Features "
," a human-alien hybrid boss specifically designed for this version. Let’s address the elephant in the room
Gallery & Another Story: Dedicated modes to view high-quality art and play through new, character-centric narratives.
Check out the official update trailer to see the new units and features in action: 【ENG】METAL SLUG ATTACK RELOADED｜Update Trailer SNK OFFICIAL YouTube• Nov 28, 2024
For fans of the classic run-and-gun series, Metal Slug Attack Reloaded on the Nintendo Switch has revitalised the beloved mobile tower defense title as a fully-featured, offline console experience. Since its surprise launch in June 2024, the game has received significant post-launch support, most notably a major free content update that arrived on November 27, 2024.
This update provides a wealth of new content, including 20 additional units and streamlined progression mechanics, making it the perfect time for players to ensure their NSP files (Nintendo Submission Package) are fully updated to the latest version. What’s New in the Metal Slug Attack Reloaded Update?
The latest update for Metal Slug Attack Reloaded significantly expands the roster and refines the gameplay loop. 1. 20 New Playable Units
The highlight of the update is the introduction of 20 new units, bringing the total roster to over 320 characters.
Reika for Liberty: A brand-new, powerful unit making her debut in the Reloaded series.
Fan Favourites: Several units previously exclusive to the mobile version’s timed events have joined the permanent roster, including Christmas Midori, Everlasting Summer Abigail, and Everlasting Summer Dragunov.
Seasonal Variants: New holiday-themed and summer-themed units across various factions like the Regular Army, Rebel Army, and Space Army. 2. Enhanced Campaigns and Scenarios
Along with the new units, players can now experience updated Everlasting Summer and Christmas campaign scenarios. These updates include:
High-Resolution Portraits: New, crisp character art for the added units.
New Quests and Avatars: Fresh objectives to complete and customisation options for your player profile. 3. Critical Quality-of-Life (QoL) Improvements
SNK has focused on making the game less "grindy" by implementing features that respect the player's time:
Batch Evolution: Evolve multiple units simultaneously rather than one by one.
Post-Battle Skip: Skip through victory screens faster to get back into the action.
Streamlined Leveling: Improvements to how units are acquired and powered up, ensuring a smoother transition through the game's difficult later stages. Key Game Features & Tech Specs However, we strongly recommend purchasing the game legally
If you are new to the Reloaded version, it differs significantly from the defunct mobile original: 【ENG】METAL SLUG ATTACK RELOADED｜Update Trailer
Metal Slug Attack Reloaded on the Nintendo Switch is an offline "re-imagining" of the original 2016 mobile tower defense game. While it removes microtransactions, it retains several mobile-style mechanics that result in a mixed reception among players and critics. Key Gameplay Features
Tower Defense Mechanics: Players use "AP" (Action Points) to deploy a deck of up to 10 units to destroy the enemy base.
Unit Collection: Includes over 300 units from various factions (Regular, Rebel, Space, etc.), each with unique attacks and special abilities.
Simplified Controls: Optimized for the Switch with button-based unit deployment and support for touchscreen controls. The "Reloaded" Experience: Pros & Cons Metal Slug Attack Reloaded Nintendo Switch Review
As of late 2024 / early 2025, the most recent significant patch for the Switch version is Version 1.1.0. If you are searching for the Metal Slug Attack Reloaded Switch NSP update new files, this is the version you need.
If you are a fan of tactical auto-battlers with a Metal Slug coat of paint, absolutely. The new Metal Slug Attack Reloaded Switch NSP update (officially version 1.1.0) is a mandatory download. It fixes the most egregious launch bugs, rebalances the roster, and adds enough extras to justify revisiting the Extra Ops.
However, do not fall for shady NSP sites promising "premium unlocks" or "all units unlocked." These files are often outdated, stolen from legitimate users, or filled with malware. The real update is free, safe, and takes less than five minutes to install directly from Nintendo.
To sum up:
Stay tuned to SNK’s official Twitter and the Metal Slug Attack Reloaded Discord for announcements about the next new update. For now, deploy your units, call in a Slug, and show General Morden that the Peregrine Falcons aren’t done yet.
Ready to reload? Boot up your Switch, grab the latest patch, and let the metal slug attacks begin.
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The circulation of these "Reloaded" NSP updates highlights a hunger among the fanbase. They want Metal Slug, but they want it accessible.
SNK has taken note. The announcement of Metal Slug Tactics (a grid-based strategy game rather than a side-scroller or tower defense) shows the company acknowledging that the IP has value beyond the arcade cabinet. However, for the fans of the specific Attack gameplay loop, the Switch modding scene provides the definitive way to play.
The "long piece" of this story is that Metal Slug Attack is better suited for a handheld console with physical buttons than it ever was for a phone. The "Reloaded" updates are the community's way of correcting the mistake of a gacha economy. They take a game designed to extract quarters (or credit card swipes) and turn it into a complete package.
The legendary run-and-gun franchise is no stranger to chaos, explosions, and Morden’s endless army. But Metal Slug Attack Reloaded shifted gears from its arcade roots into a tactical tower defense brawler. Since its debut on the Nintendo Switch, fans have been hungry for the latest content. If you’ve been searching for the Metal Slug Attack Reloaded Switch NSP update new files or simply want to know what the latest patch actually changes, you’ve come to the right place.
Disclaimer: This article does not provide or promote piracy. "NSP" refers to Nintendo Submission Package formats. We strongly encourage purchasing the game legally from the Nintendo eShop to receive official updates, online features, and developer support.