diff --git a/CMakeLists.txt b/CMakeLists.txt
index 62a715c..0c2b79c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,6 +14,7 @@ set(SOURCES
   src/core.c
   src/display_engine.c
   src/mutation_engine.c
+  src/mutation_data.c
   # ...
 )
 # Shared assets, fx-9860G-only assets and fx-CG-50-only assets
@@ -36,9 +37,6 @@ set(ASSETS_fx
   assets-fx/mutations_table/transmissions_1.txt
   assets-fx/mutations_table/transmissions_2.txt
   assets-fx/mutations_table/transmissions_3.txt
-  assets-fx/mutations_data/abilities.txt
-  assets-fx/mutations_data/symptoms.txt
-  assets-fx/mutations_data/transmissions.txt
   # ...
 )
 set(ASSETS_cg
diff --git a/Plague.g1a b/Plague.g1a
index b180f0a..ce87a5e 100644
Binary files a/Plague.g1a and b/Plague.g1a differ
diff --git a/assets-fx/bground.png b/assets-fx/bground.png
index a50e413..e4438b1 100644
Binary files a/assets-fx/bground.png and b/assets-fx/bground.png differ
diff --git a/assets-fx/converters.py b/assets-fx/converters.py
index 10a2b88..b31c588 100644
--- a/assets-fx/converters.py
+++ b/assets-fx/converters.py
@@ -5,7 +5,7 @@ def convert(input_name, output, params, target):
     if params["custom-type"] == "mutation-table":
         convert_mt(input_name, output, params, target)
         return 0
-    elif params["custom-type"] == "mutation-data":
+    elif params["custom-type"] == "mutation":
         convert_md(input_name, output, params, target)
         return 0
     else:
@@ -26,15 +26,3 @@ def convert_mt(input_name, output, params, target):
 
     fxconv.elf(data, output, "_" + params["name"], **target)
 
-
-def convert_md(input_name, output, params, target):
-    with open(input_name, "r") as file:
-        # Extract informations
-        lines = file.read().splitlines()
-
-        # Convert data into bytes-like object
-        data = bytes()
-        for i in lines:
-            data += bytes(i, encoding="utf-8")
-
-    fxconv.elf(data, output, "_" + params["name"], **target)
diff --git a/assets-fx/mutations.png b/assets-fx/mutations.png
index 6970d18..d6f671b 100644
Binary files a/assets-fx/mutations.png and b/assets-fx/mutations.png differ
diff --git a/assets-fx/mutations_data/abilities.txt b/assets-fx/mutations_data/abilities.txt
deleted file mode 100644
index 2a93ce9..0000000
--- a/assets-fx/mutations_data/abilities.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-FROID,4,0,0,10,0
-CHAUD,7,0,0,15,0
-GENETIQUE,0,5,4,25,
-MUTATION+,0,8,8,30,2
-ENVIRON,10,0,0,30,0
-MEDICAMENT,0,2,2,15,1
-NONE
-NONE
-NONE
-NONE
-NONE
-NONE
-NONE
-NONE
\ No newline at end of file
diff --git a/assets-fx/mutations_data/fxconv-metadata.txt b/assets-fx/mutations_data/fxconv-metadata.txt
deleted file mode 100644
index 0ad2668..0000000
--- a/assets-fx/mutations_data/fxconv-metadata.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-*.txt:
-  custom-type: mutation-data
-  name_regex: (.*)\.txt md_\1
\ No newline at end of file
diff --git a/assets-fx/mutations_data/symptoms.txt b/assets-fx/mutations_data/symptoms.txt
deleted file mode 100644
index 7ccbfa5..0000000
--- a/assets-fx/mutations_data/symptoms.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-NAUSEE,1,1,0,2,0.5,
-VOMISSEMENT,3,2,0,4,0.5
-TOUX,2,1,0,3,0.5
-PNEUMONIE,2,2,0,4,0.5
-TUMEUR,4,2,5,15,1
-PLAIES,2,1,0,3,0.5
-LESIONS,5,4,0,10,0.5
-HEMORRAGIE,5,15,15,20,0.5
-INFLAMMATION,2,2,2,5,0.5
-INFECTION,6,7,6,17,0.5
-IMMUNODEFICIENCE,2,6,4,12,1
-PARANOIA,0,4,0,5,1
-FOLIE,6,15,0,20,2
-ARRETTOTAL,0,20,25,30,2
\ No newline at end of file
diff --git a/assets-fx/mutations_data/transmissions.txt b/assets-fx/mutations_data/transmissions.txt
deleted file mode 100644
index c4f008c..0000000
--- a/assets-fx/mutations_data/transmissions.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-AIR1,2,0,0,9,0
-AIR2,5,0,0,15,0
-AIR3,8,0,0,20,0
-AEROSOL,10,0,0,30,0
-EAU1,2,0,0,9,0
-EAU2,4,0,0,12,0
-OISEAU1,3,0,0,12,0
-OISEAU2,6,0,0,16,0
-ANIMAL1,2,0,0,10,0
-ANIMAL2,6,0,0,16,0
-SANG1,1,0,0,8,0
-SANG2,4,0,0,14,0
-SANG3,9,0,0,20,0
-NONE
\ No newline at end of file
diff --git a/assets-fx/mutations_table/abilities_1.txt b/assets-fx/mutations_table/abilities_1.txt
index 52ca2ed..7757355 100644
--- a/assets-fx/mutations_table/abilities_1.txt
+++ b/assets-fx/mutations_table/abilities_1.txt
@@ -1,4 +1,4 @@
-1 | 0 | 0 | 0 | 6 | 0 | 0 | 0
-7 | 7 | 0 | 7 | 0 | 0 | 0 | 0
-0 | 0 | 0 | 0 | 7 | 0 | 0 | 0
-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
\ No newline at end of file
+ 1 |  0 | 0 |  0 |  6 | 0 | 0 | 0
+15 | 15 | 0 | 15 |  0 | 0 | 0 | 0
+ 0 |  0 | 0 |  0 | 15 | 0 | 0 | 0
+ 0 |  0 | 0 |  0 |  0 | 0 | 0 | 0
\ No newline at end of file
diff --git a/assets-fx/mutations_table/abilities_2.txt b/assets-fx/mutations_table/abilities_2.txt
index d2f497b..b54ad81 100644
--- a/assets-fx/mutations_table/abilities_2.txt
+++ b/assets-fx/mutations_table/abilities_2.txt
@@ -1,4 +1,4 @@
-1 | 0 | 0 | 0 | 6 | 0 | 0 | 0
-2 | 7 | 0 | 3 | 0 | 0 | 0 | 0
-0 | 0 | 0 | 0 | 7 | 0 | 0 | 0
-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
\ No newline at end of file
+1 |  0 | 0 | 0 |  6 | 0 | 0 | 0
+2 | 15 | 0 | 3 |  0 | 0 | 0 | 0
+0 |  0 | 0 | 0 | 15 | 0 | 0 | 0
+0 |  0 | 0 | 0 |  0 | 0 | 0 | 0
\ No newline at end of file
diff --git a/assets-fx/mutations_table/transmissions_1.txt b/assets-fx/mutations_table/transmissions_1.txt
index 0fde8a8..2e0695b 100644
--- a/assets-fx/mutations_table/transmissions_1.txt
+++ b/assets-fx/mutations_table/transmissions_1.txt
@@ -1,4 +1,4 @@
-1 |  14 | 14 |  0 | 14 | 5 | 0 |  0
-0 |   0 |  0 | 14 |  0 | 0 | 0 | 11
-9 |  14 |  0 |  0 |  0 | 0 | 0 | 14
-0 |   0 |  0 |  7 | 14 | 0 | 0 | 14
\ No newline at end of file
+1 |  15 | 15 |  0 | 15 | 5 | 0 |  0
+0 |   0 |  0 | 15 |  0 | 0 | 0 | 11
+9 |  15 |  0 |  0 |  0 | 0 | 0 | 15
+0 |   0 |  0 |  7 | 15 | 0 | 0 | 15
\ No newline at end of file
diff --git a/assets-fx/mutations_table/transmissions_2.txt b/assets-fx/mutations_table/transmissions_2.txt
index ed42e81..91b216a 100644
--- a/assets-fx/mutations_table/transmissions_2.txt
+++ b/assets-fx/mutations_table/transmissions_2.txt
@@ -1,4 +1,4 @@
-1 |  2 | 14 |  0 | 6 | 5 | 0 |  0
-0 |  0 |  0 | 14 | 0 | 0 | 0 | 11
+1 |  2 | 15 |  0 | 6 | 5 | 0 |  0
+0 |  0 |  0 | 15 | 0 | 0 | 0 | 11
 9 | 10 |  0 |  0 | 0 | 0 | 0 | 12
-0 |  0 |  0 |  7 | 8 | 0 | 0 | 14
\ No newline at end of file
+0 |  0 |  0 |  7 | 8 | 0 | 0 | 15
\ No newline at end of file
diff --git a/src/core.c b/src/core.c
index e57f55d..f27576c 100644
--- a/src/core.c
+++ b/src/core.c
@@ -58,7 +58,7 @@ int get_inputs(const int background, int *mutation_menu)
     {
         if (background == 5) return 3;
         if (background != 1 && background != 2) return 1;
-        if (background == 1) return -1;
+        if (background == 1 || background == 2) return -1;
     }
 
     if (background == 3)
@@ -134,8 +134,6 @@ void manage_mutation(struct game *current_game, const int mutation_menu)
         // Get and display the mutation menu
         int table[4][8];
         get_mutation(current_game, mutation_menu, table);
-        char data[14];
-        get_mutation_data(mutation_menu, data);
         display_mutation(table, c, mutation_menu);
         
         // Get the key
@@ -143,7 +141,11 @@ void manage_mutation(struct game *current_game, const int mutation_menu)
         
         // Manage input
         if (key == KEY_EXIT) end = 1;
-        // if (key == KEY_EXE) mutation_selected(c, mutation_menu, get_mutation_data(current_game, mutation_menu));
+        if (key == KEY_EXE && table[c.y][c.x] != 15 && table[c.y][c.x] != 0)
+        {
+            mutation_selected(c, mutation_menu, table);
+            getkey();
+        }
         
         if (key == KEY_LEFT && c.x > 0) c.x--;
         if (key == KEY_RIGHT && c.x < 7) c.x++;
diff --git a/src/core.h b/src/core.h
index cf93a01..b6e9545 100644
--- a/src/core.h
+++ b/src/core.h
@@ -3,7 +3,7 @@
 
 // Duration for internal clock
 #define ENGINE_TICK 50
-#define CURSOR_TICK 200
+#define CURSOR_TICK 100
 
 // Number of planes on screen
 #define NB_PLANES 5
@@ -79,5 +79,4 @@ int callback_tick(volatile int *tick);
 // manage_mutation : an independant sub-programm which allow to select, buy and see the mutations.
 void manage_mutation(struct game *current_game, const int mutation_menu);
 
-
 #endif /* _PLAGUE_CORE_H */
\ No newline at end of file
diff --git a/src/display_engine.c b/src/display_engine.c
index 31caeeb..98e4cc9 100644
--- a/src/display_engine.c
+++ b/src/display_engine.c
@@ -98,3 +98,47 @@ void display_mutation(const int table[4][8], const struct cursor c, const int mu
 
 }
 
+
+void mutation_selected(const struct cursor c, const int mutation_menu, const int table[4][8])
+{
+    extern const bopti_image_t img_mutations;
+    const int id = table[c.y][c.x];
+
+    extern struct mutation symptoms_data[14];
+    extern struct mutation abilities_data[6];
+    extern struct mutation transmissions_data[13];
+
+    struct mutation *mutation_data;
+
+    switch (mutation_menu)
+    {
+        case 1:
+            mutation_data = &symptoms_data[id - 1];
+            break;
+
+        case 2:
+            mutation_data = &abilities_data[id - 1];
+            break;
+
+        case 3:
+            mutation_data = &transmissions_data[id - 1];
+            break;
+    }
+
+    dclear(C_WHITE);
+    
+    display_background(4);
+    dsubimage(3, 21, &img_mutations, 16 * (mutation_menu - 1), 16 * (id - 1), 15, 15, DIMAGE_NONE);
+
+    dprint(47, 25, C_BLACK, mutation_data->name);
+    dprint(81, 33, C_BLACK, "%d", mutation_data->dna);
+    dprint(81, 41, C_BLACK, "%d", mutation_data->contagion);
+    dprint(81, 49, C_BLACK, "%d", mutation_data->lethality);
+    dprint(81, 57, C_BLACK, "%d", mutation_data->severity);
+    
+    dupdate();
+
+
+}
+
+
diff --git a/src/display_engine.h b/src/display_engine.h
index 57fbeaa..23898a9 100644
--- a/src/display_engine.h
+++ b/src/display_engine.h
@@ -12,4 +12,7 @@ void display_foreground(const int background, const struct game *current_game);
 // display_mutation : display the mutation selection screen
 void display_mutation(const int table[4][8], const struct cursor c, const int mutation_menu);
 
+// mutation_selected : display the mutation shop
+void mutation_selected(const struct cursor c, const int mutation_menu, const int table[4][8]);
+
 #endif /* _PLAGUE_DISPLAY_ENGINE_H */
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index c8e4e6d..a161c31 100644
--- a/src/main.c
+++ b/src/main.c
@@ -30,13 +30,14 @@ int main(void)
 
     title_screen();
 
+    // Game statistics
     struct plane plane_1 = {22, 20, 2, 84, 20, 22, 20};
     struct plane plane_2 = {34, 20, 3, 34, 44, 34, 20};
     struct plane plane_3 = {68, 44, 1, 68, 20, 68, 44};
     struct plane plane_4 = {104, 20, 3, 104, 50, 104, 20};
     struct plane plane_5 = {68, 44, 4, 34, 44, 68, 44};
 
-    GUNUSED struct game current_game =
+    struct game current_game =
     {
         .contagion = 0,
         .severity = 0,
diff --git a/src/mutation_data.c b/src/mutation_data.c
new file mode 100644
index 0000000..f298398
--- /dev/null
+++ b/src/mutation_data.c
@@ -0,0 +1,46 @@
+#include "mutation_engine.h"
+
+const struct mutation abilities_data[6] =
+{
+    {4,  0, 0, 10, 0, "FROID"},
+    {7,  0, 0, 15, 0, "CHAUD"},
+    {0,  5, 4, 25, 0, "GENETIQUE"},
+    {0,  8, 8, 30, 2, "MUTATION+"},
+    {10, 0, 0, 30, 0, "ENVIRON"},
+    {0,  2, 2, 15, 1, "MEDICAMENT"},
+};
+
+const struct mutation symptoms_data[14] =
+{
+    {1,  1,  0,  2, 0.5, "NAUSEE"},
+    {3,  2,  0,  4, 0.5, "VOMISSEMENT"},
+    {2,  1,  0,  3, 0.5, "TOUX"},
+    {2,  2,  0,  4, 0.5, "PNEUMONIE"},
+    {4,  2,  5, 15,   1, "TUMEUR"},
+    {2,  1,  0,  3, 0.5, "PLAIES"},
+    {5,  4,  0, 10, 0.5, "LESIONS"},
+    {5, 15, 15, 20, 0.5, "HEMORRAGIE"},
+    {6,  7,  6, 17, 0.5, "INFECTION"},
+    {2,  2,  2,  5, 0.5, "INFLAMMATION"},
+    {2,  6,  4, 12,   1, "IMMUNODEFICIENCE"},
+    {0,  4,  0,  5,   1, "PARANOIA"},
+    {6, 15,  0, 20,   2, "FOLIE"},
+    {0, 20, 25, 30,   2, "ARRET TOTAL"},
+};
+
+const struct mutation transmissions_data[13] =
+{
+    { 2, 0, 0,  9, 0, "AIR 1"},
+    { 5, 0, 0, 15, 0, "AIR 2"},
+    { 8, 0, 0, 20, 0, "AIR 3"},
+    {10, 0, 0, 30, 0, "AEROSOL"},
+    { 2, 0, 0,  9, 0, "EAU 1"},
+    { 4, 0, 0, 12, 0, "EAU 2"},
+    { 2, 0, 0, 10, 0, "ANIMAL 1"},
+    { 6, 0, 0, 16, 0, "ANIMAL 2"},
+    { 3, 0, 0, 12, 0, "OISEAU 1"},
+    { 6, 0, 0, 16, 0, "OISEAU 2"},
+    { 1, 0, 0,  8, 0, "SANG 1"},
+    { 4, 0, 0, 14, 0, "SANG 2"},
+    { 9, 0, 0, 20, 0, "SANG 3"},
+};
\ No newline at end of file
diff --git a/src/mutation_engine.c b/src/mutation_engine.c
index a5b4c99..a4dc60b 100644
--- a/src/mutation_engine.c
+++ b/src/mutation_engine.c
@@ -40,29 +40,6 @@ void get_mutation(const struct game *current_game, const int mutation_menu, int
 }
 
 
-void get_mutation_data(const int mutation_menu, char data[14])
-{
-    extern struct mutation_data md_abilities;
-    extern struct mutation_data md_symptoms;
-    extern struct mutation_data md_transmissions;
-
-    switch (mutation_menu)
-    {
-        case 1:
-            char_init_mat(14, data, md_symptoms.data);
-            break;
-
-        case 2:
-            char_init_mat(14, data, md_abilities.data);
-            break;
-
-        case 3:
-            char_init_mat(14, data, md_transmissions.data);
-            break;
-    }
-}
-
-
 void init_mat(int x, int y, int dest[][x], int src[][x])
 {
     for (int i = 0; i < x; i++)
@@ -74,11 +51,4 @@ void init_mat(int x, int y, int dest[][x], int src[][x])
     }
 }
 
-void char_init_mat(int x, char dest[x], char src[x])
-{
-    for (int i = 0; i < x; i++)
-    {
-        dest[i] = src[i];
-    }
-}
 
diff --git a/src/mutation_engine.h b/src/mutation_engine.h
index 1b99a7a..a132110 100644
--- a/src/mutation_engine.h
+++ b/src/mutation_engine.h
@@ -10,19 +10,19 @@ struct mutation_table
     int data[4][8];
 };
 
-// mutation_data : contain the mutations data
-struct mutation_data
+// mutation : data about a mutation
+struct mutation
 {
-    // Data of the mutations
-    char data[14];
+    // Data of the mutation : contagion, lethality, severity, DNA cost
+    int contagion, severity, lethality, dna, changement;
+
+    // Name of the mutation
+    char *name;
 };
 
 // get_mutation : return the mutation table to display
 void get_mutation(const struct game *current_game, const int mutation_menu, int table[4][8]);
 
-// get_mutation_data : return the mutation_data
-void get_mutation_data(const int mutation_menu, char data[14]);
-
 // init_mat : copy src into dest (for int)
 void init_mat(int x, int y, int dest[][x], int src[][x]);