diff --git a/README.md b/README.md
index 03216b6ac..65c8d5171 100644
--- a/README.md
+++ b/README.md
@@ -1327,25 +1327,160 @@ see [Why game folders?](#why-game-folders)
 and [What's in a game folder?](#whats-in-a-game-folder)
 below.
 
-Importing regular games
------------------------
+Importing and playing regular games
+-----------------------------------
 
-TODO
+icarus supports importing games
+in the most commonly-used formats
+for each supported console,
+and also those same formats inside `.zip` files.
+More advanced compression formats
+like RAR or 7-zip are not supported.
 
-Importing games with co-processor firmware
+For most games
+that do not use special chips or co-processors,
+importing a game is straight-forward.
+From [the Library menu](#the-library-menu)
+choose "Load ROM File ..."
+to open [a filesystem browser](#the-filesystem-browser),
+choose the game you want to play,
+and it will be imported into the library and loaded.
+
+To play the game again
+select the console the game runs on from
+[the Library menu](#the-library-menu)
+to open another [filesystem browser](#the-filesystem-browser)
+that lists all the previously-imported games for that platform.
+
+Importing and playing games with co-processor firmware
+------------------------------------------------------
+
+Many games included extra chips inside the game cartridge,
+to provide enhanced capabilities of one kind or another.
+Sometimes,
+those extra chips were separate CPUs
+running their own separate firmware,
+and for those cases
+higan requires a copy of the co-processor firmware
+as well as the actual game.
+Unfortunately,
+like games themselves,
+co-processor firmware cannot legally be distributed,
+so you'll need to obtain
+copies of the relevant firmware data
+yourself.
+
+To import a game that requires co-processor firmware,
+you must copy the required firmware files
+beside the game you want to import.
+For example,
+if you want to import Megaman X2,
+which is stored in the file `mmx2.sfc`,
+the file `cx4.data.rom`
+must be placed in the same folder
+for the import to succeed.
+
+Wikipedia [lists which Super Famicom games use which co-processors][wpec],
+although not all co-processors require separate firmware.
+Once you've figured out which co-processor
+(if any)
+is used by the game you want to import,
+here's the firmware files you'll need:
+
+  - **CX4**:
+      - `cx4.data.rom`,
+        3072 bytes,
+        SHA256: ae8d4d1961b93421ff00b3caa1d0f0ce7783e749772a3369c36b3dbf0d37ef18
+  - **DSP1/1A**: These two chips are physically different,
+    but the firmware inside is identical.
+      - `dsp1.data.rom`,
+        2048 bytes,
+        SHA256: 0b5da6533e55852ee8fc397977ec5576c5b9f1fb2e05656d8f87123a121b076e
+      - `dsp1.program.rom`,
+        6144 bytes,
+        SHA256: 269584b347a22953a2989494c850a7c1c027f4ca5add517a60e0c7d8833d0fac
+  - **DSP1B**: The DSP1B is very similar to the DSP1A,
+    but has some bugs fixed.
+    Note that icarus' heuristics cannot distinguish between
+    a game that uses DSP1
+    and one that uses DSP1B,
+    so if it cannot find your game in its manifest database,
+    it will assume it uses DSP1B.
+    Many games work just as well with either DSP1 or DSP1B,
+    but Pilotwings is a notable exception.
+      - `dsp1b.data.rom`,
+        2048 bytes,
+        SHA256: 8546cbac530830446bb8a277f6b139d4ad64d650bdbac7e4e150e2f095665049
+      - `dsp1b.program.rom`,
+        6144 bytes,
+        SHA256: 2eccb54a8f89374911f7e2db48f1b4cde855655e28103f7bda2982a5b418a187
+  - **DSP2**:
+      - `dsp2.data.rom`,
+        2048 bytes,
+        SHA256: 3beef9bffdc1e84c9f99f3301d8bd3e520d2e62909a995320f9faeae8f46ec11
+      - `dsp2.program.rom`,
+        6144 bytes,
+        SHA256: 62a2ef8d2d7db638f4ec0fbcebf0e5bf18a75ee95be06e885d9519a10487f0da
+  - **DSP3**:
+      - `dsp3.data.rom`,
+        2048 bytes,
+        SHA256: 7fe51796e9c97fee1fa2aab40592b7c78997f67dd00333e69d0f79a12f3cb69f
+      - `dsp3.program.rom`,
+        6144 bytes,
+        SHA256: aea7b622e7c1de346cb15d16afcbedf92b6798507e179f83ed2a4cff40d0e663
+  - **DSP4**:
+      - `dsp4.data.rom`,
+        2048 bytes,
+        SHA256: ef3ffb4256dd896a60213269b4e2d3bdd120c97e2fd623bddabbf43c2be422af
+      - `dsp4.program.rom`,
+        6144 bytes,
+        SHA256: 89b1826e6038be3a0ea0f923e85d589ff6f02dc1a1819fb2ec8c0cea5b333dcd
+  - **ST010**:
+      - `st010.data.rom`,
+        4096 bytes,
+        SHA256: dc7056a51b53993d7a8ba5bacf9501f785d2fce5e5be748e9ff2737c5938d4a5
+      - `st010.program.rom`,
+        49152 bytes,
+        SHA256: 2c1f74bb5f466d81c64c326e71ac054489efe1abc9a5d6f91aac7747f2ddab67
+  - **ST011**:
+      - `st011.data.rom`,
+        4096 bytes,
+        SHA256: b5377d1bebe8adc507a024b6e2b9b8fdf4877e451da84fbad05dff4e4a70311e
+      - `st011.program.rom`,
+        49152 bytes,
+        SHA256: d90a5cda380e81cb9ba11a9da7539b173c49b31bedc7a3ac9c3c8b3f97e89e14
+  - **ST018**:
+      - `st018.data.rom`,
+        32768 bytes,
+        SHA256: b5377d1bebe8adc507a024b6e2b9b8fdf4877e451da84fbad05dff4e4a70311e
+      - `st018.program.rom`,
+        131072 bytes,
+        SHA256: d90a5cda380e81cb9ba11a9da7539b173c49b31bedc7a3ac9c3c8b3f97e89e14
+
+[wpec]: https://en.wikipedia.org/wiki/List_of_Super_NES_enhancement_chips#List_of_Super_NES_games_that_use_enhancement_chips
+
+TODO: If you try to import a game without the correct firmware present, what happens?
+
+Once a game with co-processor firmware is imported,
+you can play it just like any [regular game](#importing-and-playing-regular-games).
+
+Importing and playing BS-X games
+--------------------------------
+
+Importing and playing Sufami Turbo games
+----------------------------------------
+
+Importing and playing Super Game Boy games
 ------------------------------------------
 
-Importing BS-X games
---------------------
+Importing and playing MSU-1 games
+---------------------------------
 
-Importing Sufami Turbo games
-----------------------------
+Importing and playing Game Boy Color games
+------------------------------------------
 
-Importing Super Game Boy games
-------------------------------
-
-Importing MSU-1 games
----------------------
+Importing and playing Game Boy Advance games
+--------------------------------------------
 
 Moving the game library
 -----------------------