diff --git a/include/collide.h b/include/collide.h
index f243bab..9be6f95 100644
--- a/include/collide.h
+++ b/include/collide.h
@@ -1,2 +1,4 @@
 char collide(int x, int y, char level[], char tile);
 char collide_solid(int x, int y, char level[]);
+char collide_point(int x, int y, char level[], char tile);
+char collide_and_erase(int x, int y, char level[], char tile);
diff --git a/platform.g3a b/platform.g3a
index 4868492..7756201 100644
Binary files a/platform.g3a and b/platform.g3a differ
diff --git a/src/collide.c b/src/collide.c
index 8c580ee..3570031 100644
--- a/src/collide.c
+++ b/src/collide.c
@@ -1,4 +1,5 @@
 #include "collide.h"
+#include "draw.h"
 
 #define PLAYER_SIDES 11
 #define LEVEL_WIDTH 28
@@ -7,15 +8,17 @@ char collide(int x, int y, char level[], char tile)
 {
 	if ((level[(int)(x/16) + (int)(y/16) * LEVEL_WIDTH] == tile) ||
 	(level[(int)(x/16) + (int)((y+PLAYER_SIDES)/16) * LEVEL_WIDTH] == tile) ||
-	(level[(int)((x+PLAYER_SIDES)/16) + (int)((y+PLAYER_SIDES)/16) * LEVEL_WIDTH] == tile) ||
-	(level[(int)((x+PLAYER_SIDES)/16) + (int)(y/16) * LEVEL_WIDTH] == tile) /*||
-	(level[(int)(x/16) + (int)((y+PLAYER_SIDES/2)/16) * LEVEL_WIDTH] == tile) ||
-	(level[(int)((x+PLAYER_SIDES/2)/16) + (int)(y/16) * LEVEL_WIDTH] == tile) ||
-	(level[(int)((x+PLAYER_SIDES/2)/16) + (int)((y+PLAYER_SIDES)/16) * LEVEL_WIDTH] == tile) ||
-	(level[(int)((x+PLAYER_SIDES)/16) + (int)((y+PLAYER_SIDES/2)/16) * LEVEL_WIDTH] == tile)*/) return 1;
+	(level[(int)((x+PLAYER_SIDES)/16) + (int)((y+PLAYER_SIDES)/16) *
+	LEVEL_WIDTH] == tile) || (level[(int)((x+PLAYER_SIDES)/16) + (int)(y/16) *
+	LEVEL_WIDTH] == tile)) return 1;
 	return 0;
 }
 
+char collide_point(int x, int y, char level[], char tile)
+{
+	return (level[(int)(x/16) + (int)(y/16) * LEVEL_WIDTH] == tile);
+}
+
 char collide_solid(int x, int y, char level[])
 {
 	return (collide(x, y, level, '0') ||
@@ -23,3 +26,29 @@ char collide_solid(int x, int y, char level[])
 		collide(x, y, level, '~') ||
 		collide(x, y, level, '#'));
 }
+
+char collide_and_erase(int x, int y, char level[], char tile)
+{
+	char collided = 0;
+	if (collide_point(x, y, level, tile))
+	{
+		erase_tile(x, y, level);
+		collided = 1;
+	}
+	if (collide_point(x + 11, y, level, tile))
+	{
+		erase_tile(x + 11, y, level);
+		collided = 1;
+	}
+	if (collide_point(x, y + 11, level, tile))
+	{
+		erase_tile(x, y + 11, level);
+		collided = 1;
+	}
+	if (collide_point(x + 11, y + 11, level, tile))
+	{
+		erase_tile(x + 11, y + 11, level);
+		collided = 1;
+	}
+	return collided;
+}
diff --git a/src/main.c b/src/main.c
index 36b0431..ae46d0e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -230,7 +230,7 @@ int main(void)
 		if (collide(player_x, player_y, level, 'j'))
 		{
 			UG_CAN_JUMP = 1;
-			erase_tile(player_x, player_y, level);
+			collide_and_erase(player_x, player_y, level, 'j');
 			draw_upgrade_message('j');
 		}
 		//coin get
@@ -238,8 +238,10 @@ int main(void)
 		{
 			coins[coin_id] = 1;
 			coin_count++;
-			erase_tile(player_x, player_y, level);
+			collide_and_erase(player_x, player_y, level, 'c');
 		}
+		//secret way/hidden passage
+		collide_and_erase(player_x, player_y, level, 's');
 		//exit
 		if (keydown(KEY_EXIT)) return 0;
 	}