diff --git a/src/test/libc_test.cc b/src/test/libc_test.cc
index 50c6adce..d845ca79 100644
--- a/src/test/libc_test.cc
+++ b/src/test/libc_test.cc
@@ -7,7 +7,7 @@ namespace yaze_test {
 TEST(YazeCLibTest, InitializeAndCleanup) {
   yaze_flags flags;
   yaze_init(&flags);
-  yaze_cleanup();
+  yaze_cleanup(&flags);
 }
 
 }  // namespace yaze_test
\ No newline at end of file
diff --git a/src/yaze.h b/src/yaze.h
index 4cc2a8f1..9cfc2871 100644
--- a/src/yaze.h
+++ b/src/yaze.h
@@ -12,12 +12,34 @@ extern "C" {
 #include "base/sprite.h"
 
 typedef struct yaze_flags yaze_flags;
+typedef struct z3_rom z3_rom;
 
+/**
+ * @brief Flags to initialize the Yaze library.
+ */
+struct yaze_flags {
+  int debug;
+  const char* rom_filename;
+  z3_rom* rom;
+};
+
+/**
+ * @brief Initialize the Yaze library.
+ *
+ * @param flags Flags to initialize the library.
+ */
 void yaze_init(yaze_flags*);
 
+/**
+ * @brief Clean up the Yaze library.
+ *
+ * @param flags Flags used to initialize the library.
+ */
 void yaze_cleanup(yaze_flags*);
 
-typedef struct z3_rom z3_rom;
+/**
+ * @brief Primitive of a Zelda3 ROM.
+ */
 struct z3_rom {
   const char* filename;
   const uint8_t* data;
@@ -25,15 +47,19 @@ struct z3_rom {
   void* impl;  // yaze::app::Rom*
 };
 
-struct yaze_flags {
-  int debug;
-  const char* rom_filename;
-  z3_rom* rom;
-};
-
+/**
+ * @brief Load a Zelda3 ROM from a file.
+ */
 z3_rom* yaze_load_rom(const char* filename);
+
+/**
+ * @brief Unload a Zelda3 ROM.
+ */
 void yaze_unload_rom(z3_rom* rom);
 
+/**
+ * @brief Get a color from a palette set.
+ */
 snes_color yaze_get_color_from_paletteset(const z3_rom* rom, int palette_set,
                                           int palette, int color);