diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2287c64..59aedfd 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -56,6 +56,7 @@ set(SOURCES
 	src/save.c
 	src/util.c
 	src/replace.c
+	src/friction.c
 	generated/setlevel.c
 	generated/times.c)
 
@@ -76,7 +77,7 @@ set(ASSETS_cg
 	assets-cg/img/key1.png
 	assets-cg/img/key2.png
 	assets-cg/img/medals.png
-	assets-cg/img/menu.png
+	assets-cg/img/menu2.png
 	assets-cg/img/new.png
 	assets-cg/img/player.png
 	assets-cg/img/solid.png
@@ -93,5 +94,6 @@ add_executable(${PROJECT_NAME} ${SOURCES} ${ASSETS} ${ASSETS_${FXSDK_PLATFORM}})
 target_compile_options(${PROJECT_NAME} PRIVATE ${FLAGS})
 target_link_libraries(${PROJECT_NAME} Gint::Gint)
 target_link_options(${PROJECT_NAME} PRIVATE -Wl,-Map=map)
+
 generate_g3a(TARGET ${PROJECT_NAME} OUTPUT "${PROJECT_NAME}.g3a"
 	NAME "${PROJECT_NAME}" ICONS assets-cg/icon-uns.png assets-cg/icon-sel.png)
diff --git a/assets-cg/img/fxconv-metadata.txt b/assets-cg/img/fxconv-metadata.txt
index 7a8dd93..f4bad42 100755
--- a/assets-cg/img/fxconv-metadata.txt
+++ b/assets-cg/img/fxconv-metadata.txt
@@ -71,4 +71,4 @@ nbswitch.png:
 nbswitchlayout.png:
   type:bopti-image
   profile:p4
-  name: img_nbswitchlayout
\ No newline at end of file
+  name: img_nbswitchlayout
diff --git a/assets-cg/img/menu.png b/assets-cg/img/menu.png
index a9a4d9b..b00b7fa 100755
Binary files a/assets-cg/img/menu.png and b/assets-cg/img/menu.png differ
diff --git a/include/friction.h b/include/friction.h
new file mode 100644
index 0000000..0bfdcb9
--- /dev/null
+++ b/include/friction.h
@@ -0,0 +1,3 @@
+float apply_friction(int x, int y, char level[]);
+void mod_ice(int x, int y, char level[], float *friction);
+void mod_solid(int x, int y, char level[], float *friction);
\ No newline at end of file
diff --git a/include/util.h b/include/util.h
index 4b0ba63..6e09848 100644
--- a/include/util.h
+++ b/include/util.h
@@ -1,3 +1,5 @@
 #pragma once
 
 int round(float num);
+int round_sup(float num);
+int rand_range(int low, int high);
\ No newline at end of file
diff --git a/src/collide.c b/src/collide.c
index 959655b..f51b017 100644
--- a/src/collide.c
+++ b/src/collide.c
@@ -82,8 +82,8 @@ void collide_replace(int x, int y, char level[], char collide, char replace)
 
 char collide_center(int x, int y, char level[], char block)
 {
-	if (level[(int)((x + round(PLAYER_HEIGHT / 2)) / TILE_HEIGHT) +
-	          (int)((y + round(PLAYER_HEIGHT / 2)) / TILE_HEIGHT) *
+	if (level[(int)((x + round_sup(PLAYER_HEIGHT / 2)) / TILE_HEIGHT) +
+	          (int)((y + round_sup(PLAYER_HEIGHT / 2)) / TILE_HEIGHT) *
 	              LEVEL_WIDTH] == block) {
 		return 1;
 	}
diff --git a/src/friction.c b/src/friction.c
new file mode 100644
index 0000000..55377dc
--- /dev/null
+++ b/src/friction.c
@@ -0,0 +1,23 @@
+#include "friction.h"
+#include "collide.h"
+
+float apply_friction(int x, int y, char level[]) {
+	float friction = 0.2;
+	mod_solid(x, y, level, &friction);
+	mod_ice(x, y, level, &friction);
+	return friction;
+}
+
+void mod_ice(int x, int y, char level[], float *friction) {
+	if (collide(x, y - 1, level, 'i') ||
+    	collide(x, y + 1, level, 'i')) {
+		*friction = 0.15;
+    }
+}
+
+void mod_solid(int x, int y, char level[], float *friction) {
+	if(collide_solid(x, y - 1, level) || 
+		collide_solid(x, y + 1, level)) {
+		*friction = 0.2;
+	}
+}
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index 59f03c7..9f6dc73 100644
--- a/src/main.c
+++ b/src/main.c
@@ -7,6 +7,7 @@
 #include "setlevel.h"
 #include "times.h"
 #include "util.h"
+#include "friction.h"
 #include <gint/clock.h>
 #include <gint/display.h>
 #include <gint/gint.h>
@@ -17,7 +18,7 @@
 #define VACCELERATION 0.2
 #define HACCELERATION 0.4
 #define MAX_VSPD 9.0
-#define FRICTION 0.2
+#define MAX_HSPD 2.0
 
 static int callback(volatile int *frame_elapsed);
 static void end(unsigned int frame);
@@ -156,6 +157,7 @@ static void game(int *id_level, char mode, char *type)
 				           coin);
 			if (check_nbswitch)
 				draw_nbswitch(nbswitch);
+			dprint(330, 0, C_RED, "%d", (int)(hspd*100));
 			dupdate();
 		}
 		pollevent();
@@ -168,14 +170,11 @@ static void game(int *id_level, char mode, char *type)
 
 		// right and left collision
 		if (keydown_any(KEY_RIGHT, KEY_LEFT, 0)) {
-			float hbuff = 0.0;
 			char signe = (keydown(KEY_RIGHT) - keydown(KEY_LEFT));
-			if (collide(player_x, player_y - 1, level, 'i') ||
-			    collide(player_x, player_y + 1, level, 'i')) {
-				hbuff += 0.12;
-			}
-			hspd *= 1 - FRICTION;
-			hspd += signe * (HACCELERATION + hbuff);
+			float friction = apply_friction(player_x, player_y, level);
+			hspd *= 1 - friction;
+			hspd += signe * HACCELERATION;
+			
 			if (!collide_solid(player_x + round(hspd) + signe * 1,
 			                   player_y, level))
 				player_x += round(hspd);
@@ -404,14 +403,15 @@ static void game(int *id_level, char mode, char *type)
 		}
 
 		// warp
-		if (player_y >= 212)
+		if (player_y >= 210)
 			player_y = -4;
 		if (player_y < -6)
-			player_y = 212;
+			player_y = 209;
 
 		// Menu
 
 		if (keydown_any(KEY_EXIT, KEY_MENU, 0)) {
+			timer_pause(timer);
 			char menu_loop = 1;
 			char selected = 0;
 			int Y_POS = 18;
@@ -446,6 +446,7 @@ static void game(int *id_level, char mode, char *type)
 					switch (selected) {
 					case 0:
 						menu_loop = 0;
+						timer_start(timer);
 						break;
 					case 1:
 						menu_loop = 0;
@@ -467,6 +468,7 @@ static void game(int *id_level, char mode, char *type)
 		}
 	}
 	timer_stop(timer);
+	timer_wait(timer);
 	// when a level is quit
 	if (mode) {
 		if (*id_level == 0) {
diff --git a/src/menu.c b/src/menu.c
index fde84c3..db57af4 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -17,21 +17,29 @@ enum MenuCode start_menu(char *type)
 	char selection = 0;
 	char buffer = 1;
 	char buffer2 = 1;
-	int Y_POS = 85;
+	int Y_POS = 145;
+
+	char level[351];
+	int start_x;
+	int start_y;
+
+	set_level(rand_range(1,LEVEL_MAX), level, &start_x, &start_y, NULL,
+		          NULL, NULL, NULL);
 	while (menu_loop) {
 		clearevents();
 		dclear(C_WHITE);
+		draw_level(level);
 		dimage(0, 0, &img_menu);
 		selection += keydown(KEY_DOWN) - keydown(KEY_UP);
 		if (selection == 4)
 			selection = 0;
 		else if (selection == -1)
 			selection = 3;
-		dtext(32, Y_POS, C_BLACK, "PLAY");
-		dtext(32, Y_POS + 12, C_BLACK, "ALL MODE");
-		dtext(32, Y_POS + 24, C_BLACK, "TEST LEVEL");
-		dtext(32, Y_POS + 36, C_BLACK, "EXIT GAME");
-		dtext(16, Y_POS + (selection * 12), C_BLACK, ">");
+		dtext(160, Y_POS, C_WHITE, "PLAY");
+		dtext(160, Y_POS + 12, C_WHITE, "ALL MODE");
+		dtext(160, Y_POS + 24, C_WHITE, "TEST LEVEL");
+		dtext(160, Y_POS + 36, C_WHITE, "EXIT GAME");
+		dtext(145, Y_POS + (selection * 12), C_WHITE, ">");
 		dupdate();
 		if (keydown_any(KEY_SHIFT, KEY_EXE, 0)) {
 			if (!buffer2)
@@ -85,7 +93,6 @@ char speed_menu(int *id_level)
 		dtext(340, 214, C_BLACK, "TIMES");
 		dtext(190, 45, C_BLACK, "Time : ");
 		dprint(80, 20, C_BLACK, "Level : %d", *id_level);
-		dprint(80, 50, C_RED, "%d", gravity);
 		if (sto != 0)
 			dprint(194, 60, C_RED, "%.2j", sto);
 		else
diff --git a/src/util.c b/src/util.c
index f1430b0..a57848b 100644
--- a/src/util.c
+++ b/src/util.c
@@ -1,6 +1,18 @@
 #include "util.h"
+#include <gint/std/stdlib.h>
+#include <gint/rtc.h>
 
-int round(float num)
-{
+int round(float num) {
 	return (num < 0) ? (num - 0.5) : (num + 0.5);
 }
+
+int round_sup(float num) {
+	return (int)(num+1);
+}
+
+/*maybe illegal*/
+int rand_range(int low, int high)
+{
+	srand(rtc_ticks());
+	return (rand() % (high - low)) + low;
+}
\ No newline at end of file