diff --git a/semestralka1/src/assets/character_crawl_frames.h b/semestralka1/src/assets/character_crawl_frames.h
index c2c71a6..8c30fe4 100644
--- a/semestralka1/src/assets/character_crawl_frames.h
+++ b/semestralka1/src/assets/character_crawl_frames.h
@@ -49,7 +49,7 @@ static const int CHARACTER_CRAWL1_COLLISION_RIGHT_OFFSET = 1;
 static const int CHARACTER_CRAWL1_COLLISION_WIDTH = CHARACTER_CRAWL1_FRAME_WIDTH - (CHARACTER_CRAWL1_COLLISION_LEFT_OFFSET + CHARACTER_CRAWL1_COLLISION_RIGHT_OFFSET);
 static const int CHARACTER_CRAWL1_COLLISION_HEIGHT = CHARACTER_CRAWL1_FRAME_HEIGHT - 2;
 
-// Crawl2 collision box (lower posture → smaller collision height)
+// Crawl2 collision box (lower posture - smaller collision height)
 static const int CHARACTER_CRAWL2_FRAME_WIDTH = 8;
 static const int CHARACTER_CRAWL2_COLLISION_LEFT_OFFSET  = 1;
 static const int CHARACTER_CRAWL2_COLLISION_RIGHT_OFFSET = 0;
diff --git a/semestralka1/src/game/collision.h b/semestralka1/src/game/collision.h
index 2163bbf..1ea0ba4 100644
--- a/semestralka1/src/game/collision.h
+++ b/semestralka1/src/game/collision.h
@@ -5,7 +5,7 @@
 #include "../assets/character_run_frames.h"
 #include "../assets/character_crawl_frames.h"
 
-// Simple obstacle representation
+// Obstacle representation
 struct Obstacle {
     int x;
     int y;
@@ -48,7 +48,7 @@ inline bool check_collision(const CharacterPosition& player,
         break;
     }
 
-    // Player's bounding box
+    // Player bounding box
     const int player_left = box_x;
     const int player_right = player_left + box_w;
     const int player_top = player_bottom + box_h;
@@ -59,7 +59,7 @@ inline bool check_collision(const CharacterPosition& player,
     const int obs_bottom = obs.y;
     const int obs_top = obs_bottom + obs.height;
 
-    // Simple overlap check
+    // Overlap check
     bool horizontal = player_left < obs_right && player_right > obs_left;
     bool vertical = player_bottom < obs_top && player_top > obs_bottom;
     return horizontal && vertical;
diff --git a/semestralka1/src/game/obstacle_manager.h b/semestralka1/src/game/obstacle_manager.h
index 2a7722c..0e6eee7 100644
--- a/semestralka1/src/game/obstacle_manager.h
+++ b/semestralka1/src/game/obstacle_manager.h
@@ -4,7 +4,7 @@
 #include "../assets/obstacle_crawl_frames.h"
 #include "../assets/background_frame.h"
 
-// One movable obstacle
+// Movable obstacle
 struct MovingObstacle {
     Obstacle data;
     CrawlObstacleType type;
@@ -26,7 +26,7 @@ inline int spawn_obstacle(CrawlObstacleType type, int x_start) {
             obstacle_pool[i].data.width = (type == CrawlObstacleType::Crawl1) ? OBSTACLE_CRAWL1_COLLISION_WIDTH : OBSTACLE_CRAWL2_COLLISION_WIDTH;
             obstacle_pool[i].data.height = (type == CrawlObstacleType::Crawl1) ? OBSTACLE_CRAWL1_COLLISION_HEIGHT : OBSTACLE_CRAWL2_COLLISION_HEIGHT;
 
-            // Default Y so that the SPRITE touches the top of the screen.
+            // Default Y so that the character touches the top of the screen.
             // We store Y as the bottom of the COLLISION BOX in bottom-based world coords.
             int top_offset = 0;
             if (type == CrawlObstacleType::Crawl1) {
diff --git a/semestralka1/src/game/obstacle_system.h b/semestralka1/src/game/obstacle_system.h
index 636fc8f..cfaa321 100644
--- a/semestralka1/src/game/obstacle_system.h
+++ b/semestralka1/src/game/obstacle_system.h
@@ -6,7 +6,6 @@
 #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; }
 
@@ -26,12 +25,8 @@ public:
 
         // 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;
+            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);
         }
 
diff --git a/semestralka1/src/main.cpp b/semestralka1/src/main.cpp
index eab7434..01ab922 100644
--- a/semestralka1/src/main.cpp
+++ b/semestralka1/src/main.cpp
@@ -21,6 +21,5 @@ int main(void) {
     serial_port.set_format(8, BufferedSerial::None, 1);
     printf("Baud: %d, Format: 8-N-1\r\n", BAUD_RATE);
 
-    // Just call into render feature
     render_loop(6);
 }
diff --git a/semestralka1/src/timing/speed_controller.h b/semestralka1/src/timing/speed_controller.h
index 00eb74b..b19000d 100644
--- a/semestralka1/src/timing/speed_controller.h
+++ b/semestralka1/src/timing/speed_controller.h
@@ -13,7 +13,5 @@ public:
     int get_ground_speed() const { return ground_speed; }
 
     // Calculates how many frames to advance for current tick.
-    // Takes object’s current speed and a global tick counter
-    // to automatically handle slower "wait" behavior.
     int frame_advance_for(int object_speed, int tick_counter) const;
 };