StreetPass Mii Plaza is a built-in application on the Nintendo 3DS.
Game-specific quirks
Crash when trying to buy a game
Due to the closure of Nintendo eShop, a crash can happen when attempting to buy a game (including getting a free game). There is no way to buy games for Mii Plaza anymore.
Tools
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Please be sure to create a NAND Backup with Godmode9 to allow yourself to revert any changes you make to your Streetpass Data. |
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If your meet.dat file is named meet(1).dat after you click save changes it has downloaded an updated meet.dat file with it's edited progress, please backup the old meet.dat file and then put it in a safe folder and rename the new meet.dat to its original name by removing the (1) |
| Tool | Features | Notes |
|---|---|---|
| Marc Robledo's StreetPass Mii Plaza Savegame Editor | Web-based save editor. |
This tool allows you to unlock Hats, Speech Balloons, and Ticket Shop by clicking the Unlock button, Unlock Puzzle Swap panel, Streetpass tags (It only goes up to 65,535 if you try 999,999), Plaza Tickets (156 limit), and Fantastic Ratings (1,000 maximum). Please note that this does not edit the Streetpass Mii Plaza DLC game progress and scores and doesn't have the ability to unlock like fill up Streetpass Maps too. |
| StreetPass Puzzle Editor | PC based save editor. |
This tool allows you to unlock all puzzle pieces in Puzzle Swap and fully customize your StreetPass Mii Plaza data. You can edit your StreetPass tag count (up to 999,999), Plaza Tickets, and unlock everything—including 1,000 Fantastic Ratings, all 126 map regions, all 366 birthdays, every speech balloon, and all hats, costumes, and medals (except for those from Find Mii). It also supports editing your Warrior’s Way (StreetPass Battle) progress, including Allied Soldiers and Record Army Size, which can go up to 16,777,215; however, if you set these too high (e.g., over 10 million), they may revert back to 9,999,999 or cause glitches. You can modify your constructed date (from January 2000 to December 20, 2020), battles fought, victories won, monarchs from afar defeated and challenged, and visitors welcomed, all with a maximum value of 99,999. Make sure to back up your mgBt0.dat file before making changes, in case you want to revert later. You can also use Checkpoint to back up your mgBtl0.dat (extra data) by pressing the X button. For full instructions and updates, check the information provided on the GitHub page.Please note that this does not edit other Mii Plaza game scores and progress too such as Mii Force. |
| Streetpass Hxd (Hex) Editor | PC based hex editor. |
This tool allows you to hex edit your StreetPass Mii Plaza save data, offering features similar to ArmsAsuncion’s editor but with additional capabilities. You can modify your StreetPass tags (up to 999,999), Plaza tickets, and other in-game values. It also lets you edit scores and statistics for DLC games such as Mii Force (StreetPass Squad), where you can change level and arcade mode scores up to 999,999, and Warrior’s Way (StreetPass Battle), where you can adjust both your allied army size and record size. The maximum value supported is 2,147,483,647 (the 32-bit integer limit), but setting values too high can cause bugs—such as getting negative troops or having your stats reset to the default 9,999,999. You can also change your Plaza’s constructed date (ranging from January 1, 2000, to December 31, 2050), battles fought, victories won, monarchs defeated or challenged, and visitors welcomed, each with a maximum value of 99,999. Additionally, the tool includes a leaderboard editor so you can remove any illegitimate or cheated scores before deleting and blocking specific Miis to prevent further StreetPass interactions. |
Other resources
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