diff --git a/semestralka1/src/game/obstacle_manager.h b/semestralka1/src/game/obstacle_manager.h
index 10e20be..933eb79 100644
--- a/semestralka1/src/game/obstacle_manager.h
+++ b/semestralka1/src/game/obstacle_manager.h
@@ -21,7 +21,7 @@ inline void spawn_obstacle(CrawlObstacleType type, int x_start) {
             obstacle_pool[i].active = true;
             obstacle_pool[i].type = type;
             obstacle_pool[i].data.x = x_start;
-            obstacle_pool[i].data.y = 0; // hangs from ceiling
+            obstacle_pool[i].data.y = 10; // hangs from ceiling
             if (type == CrawlObstacleType::Crawl1) {
                 obstacle_pool[i].data.width  = OBSTACLE_CRAWL1_COLLISION_WIDTH;
                 obstacle_pool[i].data.height = OBSTACLE_CRAWL1_COLLISION_HEIGHT;
diff --git a/semestralka1/src/game/obstacle_system.h b/semestralka1/src/game/obstacle_system.h
new file mode 100644
index 0000000..307072a
--- /dev/null
+++ b/semestralka1/src/game/obstacle_system.h
@@ -0,0 +1,97 @@
+// src/game/obstacle_system.h
+#pragma once
+#include "obstacle_manager.h"
+#include "../render/player_positioning.h"
+#include "../assets/obstacle_crawl_frames.h"
+#include "collision.h"
+#include "mbed.h"
+
+// Small helper for minimal mbed-safe clamp
+inline int clamp_min(int a, int b) { return (a > b) ? a : b; }
+inline int clamp_max(int a, int b) { return (a < b) ? a : b; }
+
+// Handles spawning, movement, rendering, and collision of obstacles
+class ObstacleSystem {
+public:
+    ObstacleSystem() : tick_counter_(0), spawn_index_(0) {}
+
+    // Called once per frame
+    bool update_and_draw(const CharacterPosition &player_pos,
+                         MovementType player_movement) {
+        // Update timers, move existing obstacles
+        tick_counter_++;
+        if (tick_counter_ % UPDATE_INTERVAL == 0) {
+            update_obstacles(1);
+        }
+
+        // Periodically spawn new obstacle
+        if (tick_counter_ % SPAWN_EVERY_TICKS == 0) {
+            auto type = (spawn_index_++ % 2 == 0)
+                            ? CrawlObstacleType::Crawl1
+                            : CrawlObstacleType::Crawl2;
+            const int w = (type == CrawlObstacleType::Crawl1)
+                              ? OBSTACLE_CRAWL1_FRAME_WIDTH
+                              : OBSTACLE_CRAWL2_FRAME_WIDTH;
+            spawn_obstacle(type, VIEW_WIDTH - w - 1);
+        }
+
+        // Draw & collision check
+        for (int i = 0; i < MAX_OBSTACLES; i++) {
+            if (!obstacle_pool[i].active)
+                continue;
+
+            const char **frame = nullptr;
+            int height = 0;
+            if (obstacle_pool[i].type == CrawlObstacleType::Crawl1) {
+                frame = OBSTACLE_CRAWL1_FRAME;
+                height = OBSTACLE_CRAWL1_FRAME_HEIGHT;
+            } else {
+                frame = OBSTACLE_CRAWL2_FRAME;
+                height = OBSTACLE_CRAWL2_FRAME_HEIGHT;
+            }
+
+            draw_clipped_obstacle(obstacle_pool[i], frame, height);
+
+            // Collision check
+            if (check_collision(player_pos, player_movement,
+                                obstacle_pool[i].data)) {
+                printf("\033[2J\033[H");
+                printf("GAME OVER\r\n");
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+private:
+    static constexpr int SPAWN_EVERY_TICKS = 35;
+    static constexpr int UPDATE_INTERVAL = 1; // move obstacles each frame
+    int tick_counter_;
+    int spawn_index_;
+
+    static void draw_clipped_obstacle(const MovingObstacle &obs,
+                                      const char **frame,
+                                      int frame_height) {
+        int x = obs.data.x;
+        int y = obs.data.y;
+        int w = obs.data.width;
+
+        for (int r = 0; r < frame_height; ++r) {
+            int left = x;
+            int right = x + w;
+            if (right <= 0 || left >= VIEW_WIDTH)
+                continue;
+
+            int vis_left = clamp_min(left, 0);
+            int vis_right = clamp_max(right, VIEW_WIDTH);
+            int start = vis_left - left;
+            int count = vis_right - vis_left;
+            if (count <= 0)
+                continue;
+
+            const char *row = frame[r] + start;
+            printf("\033[%d;%dH%.*s", y + r + 1, vis_left + 1, count, row);
+        }
+    }
+};
diff --git a/semestralka1/src/render/loop.cpp b/semestralka1/src/render/loop.cpp
index b7d42c5..410fbe2 100644
--- a/semestralka1/src/render/loop.cpp
+++ b/semestralka1/src/render/loop.cpp
@@ -7,10 +7,13 @@
 #include "player.h"
 #include "../game/state.h"
 #include "../game/animation.h"
+#include "../game/collision.h"
 #include "../hardware/uart.h"
 #include "../render/player.h"
+#include "../render/obstacle.h"
 #include "../timing/speed_controller.h"
 #include "../timing/movement_controller.h"
+#include "../game/obstacle_system.h"
 
 extern BufferedSerial serial_port;
 extern DigitalOut led;
@@ -38,9 +41,14 @@ void render_loop(int speed) {
   int anim_tick_counter = 0;
   int tick_counter = 0;
   int player_speed = 6;
+  bool game_over = false;
 
   player_state.set_state(PlayerState::Run);
-  while (true) {
+
+  spawn_obstacle(CrawlObstacleType::Crawl1, 40);
+  obstacle_pool[0].data.y = 8;
+  obstacle_pool[0].active = true;
+  while (!game_over) {
     tick_counter++;
 
     mover.update_position(player_speed, timing.get_ground_speed());
@@ -56,11 +64,9 @@ void render_loop(int speed) {
     if (uart_event == UartEvent::Triggered) {
       PlayerState current = player_state.get_state();
 
-      // pressing UART trigger while walking/running -> Crawl1
       if (current == PlayerState::Walk || current == PlayerState::Run) {
         player_state.start_crawl(PlayerState::Crawl1);
       }
-      // pressing again while crawling -> Crawl2
       else if (current == PlayerState::Crawl1) {
         player_state.start_crawl(PlayerState::Crawl2);
       }
@@ -84,6 +90,17 @@ void render_loop(int speed) {
       CharacterPosition draw_pos = get_aligned_frame_position(pos, frame.movement, frame.frame_index);
       draw_character(draw_pos.x, draw_pos.y, frame.movement, frame.frame_index);
 
+      for (int i = 0; i < MAX_OBSTACLES; i++) {
+	      if (!obstacle_pool[i].active)
+		      continue;
+	      draw_obstacle(obstacle_pool[i].data.x,
+			      obstacle_pool[i].data.y,
+			      obstacle_pool[i].type);
+      }
+
+      if (game_over)
+        break;
+
       ThisThread::sleep_for(50ms);
     }
 
diff --git a/semestralka1/src/render/obstacle.cpp b/semestralka1/src/render/obstacle.cpp
new file mode 100644
index 0000000..806c737
--- /dev/null
+++ b/semestralka1/src/render/obstacle.cpp
@@ -0,0 +1,31 @@
+// src/render/obstacle.cpp
+#include "obstacle.h"
+#include "../assets/obstacle_crawl_frames.h"
+#include <cstdio>
+
+// Draw a single obstacle ASCII sprite at (x, y)
+void draw_obstacle(int x, int y, CrawlObstacleType type) {
+    const char **obstacle = nullptr;
+    int obstacle_height = 0;
+
+    switch (type) {
+    case CrawlObstacleType::Crawl1:
+        obstacle = OBSTACLE_CRAWL1_FRAME;
+        obstacle_height = OBSTACLE_CRAWL1_FRAME_HEIGHT;
+        break;
+
+    case CrawlObstacleType::Crawl2:
+        obstacle = OBSTACLE_CRAWL2_FRAME;
+        obstacle_height = OBSTACLE_CRAWL2_FRAME_HEIGHT;
+        break;
+
+    default:
+        return; // in case of invalid type
+    }
+
+    // Each obstacle row is printed using ANSI cursor positioning
+    for (int i = 0; i < obstacle_height; i++) {
+        printf("\033[%d;%dH%s", y + i + 1, x + 1, obstacle[i]);
+    }
+    fflush(stdout);
+}
diff --git a/semestralka1/src/render/obstacle.h b/semestralka1/src/render/obstacle.h
new file mode 100644
index 0000000..feec541
--- /dev/null
+++ b/semestralka1/src/render/obstacle.h
@@ -0,0 +1,7 @@
+// src/render/obstacle.h
+#pragma once
+
+#include "../assets/obstacle_crawl_frames.h"
+
+// Draw the obstacle ASCII block starting at given (x, y)
+void draw_obstacle(int x, int y, CrawlObstacleType type);