diff --git a/th02/formats/cfg.h b/th02/formats/cfg.h
new file mode 100644
index 00000000..de9d6794
--- /dev/null
+++ b/th02/formats/cfg.h
@@ -0,0 +1,19 @@
+#pragma option -a1
+
+#if GAME == 2
+# define CFG_FN "huuma.cfg"
+	typedef struct {
+		int8_t rank;
+		int8_t bgm_mode;
+		int8_t bombs;
+		int8_t lives;
+		int8_t perf;
+	} cfg_options_t;
+#endif
+
+typedef struct {
+	cfg_options_t opts;
+	void __seg *resident_sgm;
+	int8_t debug;
+} cfg_t;
+#pragma option -a.
diff --git a/th02/formats/cfg_init.c b/th02/formats/cfg_init.c
new file mode 100644
index 00000000..4784bd15
--- /dev/null
+++ b/th02/formats/cfg_init.c
@@ -0,0 +1,15 @@
+void cfg_init(seg_t resident_sgm)
+{
+	const char *fn = CFG_FN;
+	cfg_options_t opts = OPTS_DEFAULT;
+	int handle = dos_axdx(0x3D02, fn);
+	if(handle > 0) {
+		dos_seek(handle, sizeof(opts), SEEK_SET);
+	} else {
+		handle = dos_create(fn, _A_ARCH);
+		dos_write(handle, &opts, sizeof(opts));
+	}
+	dos_write(handle, &resident_sgm, sizeof(resident_sgm));
+	dos_write(handle, &debug, sizeof(debug));
+	dos_close(handle);
+}
diff --git a/th02/maine_03.c b/th02/maine_03.c
index b0be002b..e0d12bfe 100644
--- a/th02/maine_03.c
+++ b/th02/maine_03.c
@@ -4,6 +4,7 @@
  */
 
 #include "th02\th02.h"
+#include "th02/formats/cfg.h"
 
 char rank = RANK_NORMAL;
 char unused_1 = 0;
@@ -23,7 +24,7 @@ int pascal cfg_load(void)
 	seg_t resident_sgm;
 
 	file_ropen(CFG_FN);
-	file_seek(offsetof(huuma_cfg_t, resident_sgm), 0);
+	file_seek(offsetof(cfg_t, resident_sgm), 0);
 	file_read(&resident_sgm, sizeof(resident_sgm));
 	file_close();
 	if(!resident_sgm) {
diff --git a/th02/op_01.c b/th02/op_01.c
index cfef792c..1d54bed4 100644
--- a/th02/op_01.c
+++ b/th02/op_01.c
@@ -7,6 +7,7 @@
 #include "libs/kaja/kaja.h"
 #include "th02/th02.h"
 #include "th02/initexit.h"
+#include "th02/formats/cfg.h"
 #include "th02/formats/pi.h"
 #include "th02/snd/snd.h"
 
@@ -40,7 +41,7 @@ void pascal musicroom(void);
 
 int cfg_load(void)
 {
-	huuma_cfg_t cfg;
+	cfg_t cfg;
 	const char *cfg_fn = CFG_FN;
 
 	if(file_exist(cfg_fn)) {
@@ -77,7 +78,7 @@ int cfg_load(void)
 void cfg_save(void)
 {
 	const char *cfg_fn = CFG_FN;
-	huuma_cfg_t cfg;
+	cfg_t cfg;
 
 	cfg.debug = 0;
 	cfg.opts.rank = rank;
@@ -87,7 +88,7 @@ void cfg_save(void)
 	cfg.opts.perf = resident->perf;
 
 	file_create(cfg_fn);
-	file_write(&cfg, offsetof(huuma_cfg_t, resident_sgm));
+	file_write(&cfg, offsetof(cfg_t, resident_sgm));
 	file_write(&resident_sgm, sizeof(resident_sgm));
 	file_write(&cfg.debug, sizeof(cfg.debug));
 	file_close();
diff --git a/th02/res_init.c b/th02/res_init.c
new file mode 100644
index 00000000..3fb58de7
--- /dev/null
+++ b/th02/res_init.c
@@ -0,0 +1,51 @@
+int main(int argc, const char **argv)
+{
+	seg_t sgm;
+	const char *res_id = RES_ID;
+	int i;
+	char far *resident_bytes;
+
+	sgm = resdata_exist(res_id, RES_ID_STRLEN, RES_PARASIZE);
+	dos_puts2("\n\n" LOGO "\n");
+	graph_clear();
+#ifdef RES_INIT_TOP
+	RES_INIT_TOP;
+#endif
+	if(argc == 2) {
+		#define arg1_is(capital, small) \
+			(argv[1][0] == '-' || argv[1][0] == '/') \
+			&& (argv[1][1] == (capital) || argv[1][1] == (small))
+		if(arg1_is('R', 'r')) {
+			if(!sgm) {
+				dos_puts2("わたし、まだいませんよぉ\n\n");
+				return 1;
+			}
+			dos_free(sgm);
+			dos_puts2("さよなら、また会えたらいいな\n\n");
+			return 0;
+		} else if(arg1_is('D', 'd')) {
+			debug = 1;
+		} else {
+			dos_puts2("そんなオプション付けられても、困るんですけど\n\n");
+			sgm = sgm; /* optimization barrier #1 */
+			return 1;
+		}
+	}
+	if(sgm) {
+		dos_puts2("わたし、すでにいますよぉ\n\n");
+		argv = argv; /* optimization barrier #2 */
+		return 1;
+	}
+	sgm = resdata_create(res_id, RES_ID_STRLEN, RES_PARASIZE);
+	if(!sgm) {
+		dos_puts2("作れません、わたしの居場所がないの！\n\n");
+		return 1;
+	}
+	resident_bytes = MK_FP(sgm, 0);
+	dos_puts2("それでは、よろしくお願いします\n\n");
+	for(i = (RES_ID_STRLEN + 1); i < sizeof(resident_t); i++) {
+		resident_bytes[i] = 0;
+	}
+	cfg_init(sgm);
+	return 0;
+}
diff --git a/th02/th02.h b/th02/th02.h
index c30c935f..10370b6a 100644
--- a/th02/th02.h
+++ b/th02/th02.h
@@ -151,26 +151,6 @@ void key_delay(void);
 #define MUSIC_CMT_LINE_LEN 42
 #define MUSIC_CMT_LINE_COUNT 20
 
-// Configuration file
-// ------------------
-#define CFG_FN "huuma.cfg"
-#pragma option -a1
-typedef struct {
-	int8_t rank;
-	int8_t bgm_mode;
-	int8_t bombs;
-	int8_t lives;
-	int8_t perf;
-} huuma_options_t;
-
-typedef struct {
-	huuma_options_t opts;
-	void __seg *resident_sgm;
-	int8_t debug;
-} huuma_cfg_t;
-#pragma option -a.
-// ------------------
-
 // Resident structure
 // ------------------
 #define RES_ID "MIKOConfig"
diff --git a/th02/zun_res1.c b/th02/zun_res1.c
index 893900c0..f814ea73 100644
--- a/th02/zun_res1.c
+++ b/th02/zun_res1.c
@@ -7,88 +7,26 @@
 #include <stddef.h>
 #include "th02/th02.h"
 #include "th02/snd/snd.h"
+#include "th02/formats/cfg.h"
 
 #pragma option -a1
 
+int pascal scoredat_verify(void);
+
 char debug = 0;
+const cfg_options_t OPTS_DEFAULT = { RANK_NORMAL, SND_BGM_FM, 3, 2, 0 };
 
-void cfg_write(seg_t resident_sgm)
-{
-	static const huuma_options_t opts_default = {
-		RANK_NORMAL, SND_BGM_FM, 3, 2, 0
-	};
-	static const char HUUMA_CFG[] = CFG_FN;
-
-	const char *fn = HUUMA_CFG;
-	huuma_options_t opts = opts_default;
-	int handle = dos_axdx(0x3D02, fn);
-	if(handle > 0) {
-		dos_seek(handle, sizeof(opts), SEEK_SET);
-	} else {
-		handle = dos_create(fn, _A_ARCH);
-		dos_write(handle, &opts, sizeof(opts));
-	}
-	dos_write(handle, &resident_sgm, sizeof(resident_sgm));
-	dos_write(handle, &debug, sizeof(debug));
-	dos_close(handle);
-}
+#include "th02/formats/cfg_init.c"
 
 #define LOGO \
 	"東方封魔録用　 常駐プログラム　ZUN_RES.com Version1.01       (c)zun 1997"
 
-int main(int argc, const char **argv)
-{
-	int pascal scoredat_verify(void);
+#define RES_INIT_TOP \
+	if(scoredat_verify() == 1) { \
+		dos_puts2("ハイスコアファイルがおかしいの、もう一度実行してね。\n"); \
+		return 1; \
+	}
 
-	seg_t sgm;
-	const char *res_id = RES_ID;
-	int i;
-	char far *resident;
-
-	sgm = resdata_exist(res_id, RES_ID_STRLEN, RES_PARASIZE);
-	dos_puts2("\n\n" LOGO "\n");
-	graph_clear();
-	if(scoredat_verify() == 1) {
-		dos_puts2("ハイスコアファイルがおかしいの、もう一度実行してね。\n");
-		return 1;
-	}
-	if(argc == 2) {
-		#define arg1_is(capital, small) \
-			(argv[1][0] == '-' || argv[1][0] == '/') \
-			&& (argv[1][1] == (capital) || argv[1][1] == (small))
-		if(arg1_is('R', 'r')) {
-			if(!sgm) {
-				dos_puts2("わたし、まだいませんよぉ\n\n");
-				return 1;
-			}
-			dos_free(sgm);
-			dos_puts2("さよなら、また会えたらいいな\n\n");
-			return 0;
-		} else if(arg1_is('D', 'd')) {
-			debug = 1;
-		} else {
-			dos_puts2("そんなオプション付けられても、困るんですけど\n\n");
-			sgm = sgm; /* optimization barrier #1 */
-			return 1;
-		}
-	}
-	if(sgm) {
-		dos_puts2("わたし、すでにいますよぉ\n\n");
-		argv = argv; /* optimization barrier #2 */
-		return 1;
-	}
-	sgm = resdata_create(res_id, RES_ID_STRLEN, RES_PARASIZE);
-	if(!sgm) {
-		dos_puts2("作れません、わたしの居場所がないの！\n\n");
-		return 1;
-	}
-	resident = MK_FP(sgm, 0);
-	dos_puts2("それでは、よろしくお願いします\n\n");
-	for(i = offsetof(resident_t, stage); i < sizeof(resident_t); i++) {
-		resident[i] = 0;
-	}
-	cfg_write(sgm);
-	return 0;
-}
+#include "th02/res_init.c"
 
 #pragma codestring "\x00"