diff --git a/HEADS b/HEADS
index 38f416f..269865b 100644
--- a/HEADS
+++ b/HEADS
@@ -1 +1 @@
-{"engine": {"3.2": "94a0fc47f7b4e90f8973f9adbfd3312579ed2825", "master": "8c73e813134001e575b6f59e3b0100471c007410", "3.x": "c4864a0e5f73a375259503ea1485794a6aad6df7"}, "world_generator": {"master": "260c430f11b0b591eaf4714516419aa327d2842c"}, "entity_spell_system": {"master": "3536f01bacf5f54cefb32b768cd020a1f94d0ade"}, "ui_extensions": {"master": "80a3b96fc56991a0f88a1d441ed1e3cebaf3307a"}, "voxelman": {"master": "65485930a20f65844d496b4ba47dec5b6ed70b91"}, "texture_packer": {"master": "ae4d222fbaade063ed6f0bc9f3aaa53df68a7fed"}, "fastnoise": {"master": "46bb1f610bfb7171613b5c708d312bcf94e89356"}, "mesh_data_resource": {"master": "a062d871d49d954c5466b9de54b4075cb61cbef4"}, "procedural_animations": {"master": "f8aae42bf06b3936cc6bd24cb18e1c3ec9f78f4f"}, "ess_data": {"master": "3bd637fdd3304b64a18287a49a6b7387acf2f5de"}, "props": {"master": "983090d21a08ebed30a5ce06681269819ab12e48"}, "mesh_utils": {"master": "b52a261c31f04fad624e5cfbcdcc4a45d61136da"}, "broken_seals_module": {"master": "52c5a81350db1c29d375c63d95010260911ec034"}, "thread_pool": {"master": "0917511d04bb1aa308385b63ec88d3c182990628"}, "terraman": {"master": "c72d8fc03295588fc18c5168ce351bd0c321ec5f"}, "pandemonium_engine": {"master": "25e57a4268c06d801b14cadf029ad63334520d5e"}, "pmlpp": {"master": "fffb3075e473dc6cada2f916f56fdd56360781b1"}}
\ No newline at end of file
+{"engine": {"3.2": "94a0fc47f7b4e90f8973f9adbfd3312579ed2825", "master": "8c73e813134001e575b6f59e3b0100471c007410", "3.x": "c4864a0e5f73a375259503ea1485794a6aad6df7"}, "world_generator": {"master": "260c430f11b0b591eaf4714516419aa327d2842c"}, "entity_spell_system": {"master": "3536f01bacf5f54cefb32b768cd020a1f94d0ade"}, "ui_extensions": {"master": "80a3b96fc56991a0f88a1d441ed1e3cebaf3307a"}, "voxelman": {"master": "65485930a20f65844d496b4ba47dec5b6ed70b91"}, "texture_packer": {"master": "ae4d222fbaade063ed6f0bc9f3aaa53df68a7fed"}, "fastnoise": {"master": "46bb1f610bfb7171613b5c708d312bcf94e89356"}, "mesh_data_resource": {"master": "a062d871d49d954c5466b9de54b4075cb61cbef4"}, "procedural_animations": {"master": "f8aae42bf06b3936cc6bd24cb18e1c3ec9f78f4f"}, "ess_data": {"master": "3bd637fdd3304b64a18287a49a6b7387acf2f5de"}, "props": {"master": "983090d21a08ebed30a5ce06681269819ab12e48"}, "mesh_utils": {"master": "b52a261c31f04fad624e5cfbcdcc4a45d61136da"}, "broken_seals_module": {"master": "52c5a81350db1c29d375c63d95010260911ec034"}, "thread_pool": {"master": "0917511d04bb1aa308385b63ec88d3c182990628"}, "terraman": {"master": "c72d8fc03295588fc18c5168ce351bd0c321ec5f"}, "pandemonium_engine": {"master": "25e57a4268c06d801b14cadf029ad63334520d5e"}, "pmlpp": {"master": "3eff399d6b95f398d34533d86c27b531e62eec72"}}
\ No newline at end of file
diff --git a/game/test/Test.gd b/game/test/Test.gd
index bfd9134..eda99d3 100644
--- a/game/test/Test.gd
+++ b/game/test/Test.gd
@@ -26,7 +26,7 @@ func _ready() -> void:
 #	mlpp_tests.test_probit_regression(ui)
 #	mlpp_tests.test_c_log_log_regression(ui)
 #	mlpp_tests.test_exp_reg_regression(ui)
-	mlpp_tests.test_tanh_regression(ui)
+#	mlpp_tests.test_tanh_regression(ui)
 #	mlpp_tests.test_softmax_regression(ui)
 #	mlpp_tests.test_support_vector_classification(ui)
 #
@@ -54,5 +54,6 @@ func _ready() -> void:
 #	mlpp_tests.test_numerical_analysis()
 #	mlpp_tests.test_support_vector_classification_kernel(ui)
 
-#	mlpp_tests.test_mlpp_matrix()
 #	mlpp_tests.test_mlpp_vector()
+#	mlpp_tests.test_mlpp_matrix()
+	mlpp_tests.test_mlpp_matrix_mul()
diff --git a/game/test/TestMatrix.gd b/game/test/TestMatrix.gd
new file mode 100644
index 0000000..8f7f2af
--- /dev/null
+++ b/game/test/TestMatrix.gd
@@ -0,0 +1,9 @@
+extends Node
+
+var mlpp_tests : MLPPMatrixTests = null
+
+func _ready() -> void:
+	mlpp_tests = MLPPMatrixTests.new()
+
+	mlpp_tests.test_mlpp_matrix()
+	mlpp_tests.test_mlpp_matrix_mul()
diff --git a/game/test/TestMatrix.tscn b/game/test/TestMatrix.tscn
new file mode 100644
index 0000000..65f6e37
--- /dev/null
+++ b/game/test/TestMatrix.tscn
@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=2]
+
+[ext_resource path="res://test/TestMatrix.gd" type="Script" id=1]
+
+[node name="TestMatrix" type="Node"]
+script = ExtResource( 1 )