diff --git a/test/random_test.py b/test/random_test.py
index 713edb2..e31e689 100644
--- a/test/random_test.py
+++ b/test/random_test.py
@@ -113,12 +113,15 @@ def random_test():
         {"pattern": "flicker", "short_name": "fl", "n1": 30, "delay": 100, "color": (0, 255, 0)},
         {"pattern": "flicker", "short_name": "fl", "n1": 100, "delay": 30, "color": (0, 0, 255)},
         
-        # N-chase patterns (bidirectional)
-        {"pattern": "n_chase", "short_name": "nc", "n1": 5, "n2": 5, "n3": 1, "n4": 1, "delay": 100, "color": (255, 0, 0)},
-        {"pattern": "n_chase", "short_name": "nc", "n1": 10, "n2": 5, "n3": 1, "n4": 1, "delay": 150, "color": (0, 255, 0)},
-        {"pattern": "n_chase", "short_name": "nc", "n1": 20, "n2": 20, "n3": 20, "n4": 5, "delay": 200, "color": (0, 255, 255)},
+        # N-chase patterns (mix of forward-only and bidirectional)
+        # Forward-only patterns
+        {"pattern": "n_chase", "short_name": "nc", "n1": 5, "n2": 5, "n3": 5, "n4": 5, "delay": 100, "color": (255, 0, 0)},
+        {"pattern": "n_chase", "short_name": "nc", "n1": 10, "n2": 5, "n3": 10, "n4": 10, "delay": 150, "color": (0, 255, 0)},
+        {"pattern": "n_chase", "short_name": "nc", "n1": 20, "n2": 20, "n3": 20, "n4": 20, "delay": 200, "color": (0, 255, 255)},
+        # Bidirectional patterns
         {"pattern": "n_chase", "short_name": "nc", "n1": 15, "n2": 10, "n3": 10, "n4": 5, "delay": 180, "color": (255, 255, 0)},
-        {"pattern": "n_chase", "short_name": "nc", "n1": 3, "n2": 3, "n3": 1, "n4": 1, "delay": 120, "color": (255, 0, 255)},
+        {"pattern": "n_chase", "short_name": "nc", "n1": 20, "n2": 20, "n3": 20, "n4": 5, "delay": 200, "color": (255, 0, 255)},
+        {"pattern": "n_chase", "short_name": "nc", "n1": 12, "n2": 8, "n3": 15, "n4": 8, "delay": 160, "color": (255, 128, 128)},
         
         # N-chase patterns (forward only, large segments)
         {"pattern": "n_chase", "short_name": "nc", "n1": 30, "n2": 10, "n3": 5, "n4": 5, "delay": 150, "color": (255, 128, 0)},