diff --git a/assets/heart.si2 b/assets/heart.si2
new file mode 100644
index 0000000..b95a095
Binary files /dev/null and b/assets/heart.si2 differ
diff --git a/assets/img2si.py b/assets/img2si.py
new file mode 100644
index 0000000..b593695
--- /dev/null
+++ b/assets/img2si.py
@@ -0,0 +1,127 @@
+#!/usr/bin/env python3
+from array import array
+from PIL import Image
+import argparse
+import io
+import os
+
+
+__author__ = "Kuruyia"
+__version__ = "1.0.0"
+__license__ = "MIT"
+
+# The "Simple Image for Space Invaders" (.si2) file format specifications
+# Authors: Alexandre "Kuruyia" SOLLIER, Marc AMBAUD (2019 - 2020)
+#
+# | Address | Length | Description                         |
+# |---------|--------|-------------------------------------|
+# | 0x00    | 2      | Magic number ("SI")                 |
+# | 0x02    | 4      | Header magic number ("HEAD")        |
+# | 0x06    | 2      | File version                        |
+# | 0x08    | 4      | Pixel count                         |
+# | 0x0C    | 4      | Image width                         |
+# | 0x10    | 4      | Data magic number ("DATA")          |
+# | 0x14    | ???    | Uncompressed image data as RGBA8888 |
+# "File version", "Pixel count" and "Image width" entries are little-endian, unsigned numbers.
+
+
+def is_file_si2(filePath):
+    # Check the magic number
+    with open(filePath, 'rb') as file:
+        return file.read(2) == b'SI'
+
+
+def convert_from_si2(source, output):
+    # Print summary
+    print('Source image: .si2')
+    _, outExtension = os.path.splitext(output)
+    print('Output image: {}'.format(outExtension))
+
+    # Read si2 image data
+    with open(source, 'rb') as file:
+        file.seek(0x08)
+        pixelCount = int.from_bytes(file.read(4), byteorder='little', signed=False)
+        lineSize = int.from_bytes(file.read(4), byteorder='little', signed=False)
+        imageSize = (lineSize, int(pixelCount/lineSize))
+        file.seek(0x14)
+        imageData = file.read()
+
+    # Print summary 2: Electric Boogaloo
+    print('Image size is {}x{}'.format(imageSize[0], imageSize[1]))
+    print()
+    print('Starting conversion...')
+
+    # Save the converted image
+    img = Image.frombytes('RGBA', imageSize, imageData)
+    img.save(output)
+
+
+def convert_to_si2(source, output):
+    # Print summary
+    _, outExtension = os.path.splitext(source)
+    print('Source image: {}'.format(outExtension))
+    print('Output image: .si2')
+
+    # Read source image
+    with Image.open(source) as img:
+        imageSize = img.size
+
+        if img.mode != 'RGBA':
+            # Convert image mode if unsupported
+            print('Source image mode "{}" is unsupported, attempting conversion...'.format(img.mode))
+
+            imgConvt = img.convert('RGBA')
+            imageData = imgConvt.load()
+        else:
+            imageData = img.load()
+
+    # Print summary 2: Electric Boogaloo
+    print('Image size is {}x{}'.format(imageSize[0], imageSize[1]))
+    print()
+    print('Starting conversion...')
+
+    # Convert the image
+    with open(output, 'wb') as file:
+        file.write(b'SIHEAD\01\00')
+        file.write((imageSize[0]*imageSize[1]).to_bytes(4, byteorder='little'))
+        file.write((imageSize[0]).to_bytes(4, byteorder='little'))
+        file.write(b'DATA')
+
+        for y in range(0, imageSize[1]):
+            for x in range(0, imageSize[0]):
+                file.write(bytes(imageData[x, y]))
+
+
+def main():
+    # Setup argument parser
+    parser = argparse.ArgumentParser(description='This tool converts images compatible with PIL to the minGL 2 Simple Image format (.si2), and vice versa.')
+    parser.add_argument('-v', '--version', action='version', version='%(prog)s 1.0')
+    parser.add_argument('<source image file>', help='The path to the image to convert. A .si2 will be converted to a .png file. Any other image type will be converted to a .si2 file.')
+    parser.add_argument('<output file>', help='The path to output the converted image to.')
+
+    args = vars(parser.parse_args())
+    source = args['<source image file>']
+    output = args['<output file>']
+
+    # Check that source file exists
+    if not os.path.isfile(source):
+        exit('"{}"\nThe specified path does not exist.'.format(source))
+
+    # Check if source file is in the .si2 format
+    isSourceSi2 = is_file_si2(source)
+
+    if isSourceSi2:
+        convert_from_si2(source, output)
+    else:
+        convert_to_si2(source, output)
+
+    print('Done!')
+
+    # with Image.open(source) as img:
+    #     for y in range(0, img.height):
+    #         for x in range(0, img.width):
+    #             print(img.getpixel((x, y)))
+
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file
diff --git a/assets/missile.si2 b/assets/missile.si2
new file mode 100644
index 0000000..7453eaf
Binary files /dev/null and b/assets/missile.si2 differ
diff --git a/assets/player.si2 b/assets/player.si2
index e5de91b..783906d 100644
Binary files a/assets/player.si2 and b/assets/player.si2 differ
diff --git a/assets/player2.png b/assets/player2.png
new file mode 100644
index 0000000..d1d1e8e
Binary files /dev/null and b/assets/player2.png differ
diff --git a/assets/player2.si2 b/assets/player2.si2
new file mode 100644
index 0000000..8614921
Binary files /dev/null and b/assets/player2.si2 differ
diff --git a/config.yml b/config.yml
index 7ea2523..45b9b24 100644
--- a/config.yml
+++ b/config.yml
@@ -14,7 +14,7 @@
 #
 general:
  maxFPS: 30
- theme: 
+ theme: good
 
 
 #############################
diff --git a/headers/pixelManager/goodPixelManager.h b/headers/pixelManager/goodPixelManager.h
index 7223dc8..0a412fe 100644
--- a/headers/pixelManager/goodPixelManager.h
+++ b/headers/pixelManager/goodPixelManager.h
@@ -58,6 +58,19 @@ class GoodPixelManager : public PixelManager{
 	* @brief sprite of the torpedo
 	*/
 	MySprite torpedo;
+
+	/*!
+	* @brief sprite of the heart
+	*/
+	MySprite heart;
+
+	void drawInvaderA(const Position& baseVector, unsigned size, const RGBAcolor& color) const override;
+	void drawInvaderB(const Position& baseVector, unsigned size, const RGBAcolor& color) const override;
+	void drawInvaderC(const Position& baseVector, unsigned size, const RGBAcolor& color) const override;
+	void drawPlayer(unsigned x, unsigned width, const RGBAcolor& color) const override;
+	void drawMissile(const Position& baseVector, unsigned width, const RGBAcolor& color) const override;
+	void drawTorpedo(const Position& baseVector, unsigned width, const RGBAcolor& color) const override;
+	void drawHeart(const Position& baseVector) const override;
 public:
 
 	/*!
diff --git a/headers/pixelManager/pixelManager.h b/headers/pixelManager/pixelManager.h
index d84ef80..3112225 100644
--- a/headers/pixelManager/pixelManager.h
+++ b/headers/pixelManager/pixelManager.h
@@ -98,7 +98,7 @@ public:
 	* @param[in] color : color multiplicaror of the invader
 	* @fn void drawInvaderA(const Position& baseVector, unsigned size, const RGBAcolor& color) const; 
 	*/
-	void drawInvaderA(const Position& baseVector, unsigned size, const RGBAcolor& color) const;
+	virtual void drawInvaderA(const Position& baseVector, unsigned size, const RGBAcolor& color) const;
 	
 	/*!
  	* @brief display a type B invader on screen
@@ -107,7 +107,7 @@ public:
 	* @param[in] color : color multiplicaror of the invader
 	* @fn void drawInvaderB(const Position& baseVector, unsigned size, const RGBAcolor& color) const;
 	*/
-	void drawInvaderB(const Position& baseVector, unsigned size, const RGBAcolor& color) const;
+	virtual void drawInvaderB(const Position& baseVector, unsigned size, const RGBAcolor& color) const;
 	
 	/*!
  	* @brief display a type C invader on screen
@@ -116,7 +116,7 @@ public:
 	* @param[in] color : color multiplicaror of the invader
 	* @fn void drawInvaderC(const Position& baseVector, unsigned size, const RGBAcolor& color) const; 
 	*/
-	void drawInvaderC(const Position& baseVector, unsigned size, const RGBAcolor& color) const;
+	virtual void drawInvaderC(const Position& baseVector, unsigned size, const RGBAcolor& color) const;
 	
 	/*!
 	* @brief display a player on screen
@@ -125,7 +125,7 @@ public:
 	* @param[in] color : color of the plater
 	* @fn void drawPlayer(unsigned x, unsigned width, const nsGraphics::RGBAcolor& color) const;
 	*/
-	void drawPlayer(unsigned x, unsigned width, const nsGraphics::RGBAcolor& color) const;
+	virtual void drawPlayer(unsigned x, unsigned width, const nsGraphics::RGBAcolor& color) const;
 	
 	/*!
 	* @brief display a missile on screen
@@ -134,7 +134,7 @@ public:
 	* @param[in] color : color of the missile
 	* @fn void drawMissile(const Position& baseVector, unsigned width, const nsGraphics::RGBAcolor& color) const;
 	*/
-	void drawMissile(const Position& baseVector, unsigned width, const nsGraphics::RGBAcolor& color) const;
+	virtual void drawMissile(const Position& baseVector, unsigned width, const nsGraphics::RGBAcolor& color) const;
 	
 	/*!
 	* @brief display a torpedo on screen
@@ -143,7 +143,7 @@ public:
 	* @param[in] color : color of the torpedo
 	* @fn void drawTorpedo(const Position& baseVector, unsigned width, const nsGraphics::RGBAcolor& color) const;
 	*/
-	void drawTorpedo(const Position& baseVector, unsigned width, const nsGraphics::RGBAcolor& color) const;
+	virtual void drawTorpedo(const Position& baseVector, unsigned width, const nsGraphics::RGBAcolor& color) const;
 
 #define HEART_LENGTH 40
 
@@ -152,7 +152,7 @@ public:
 	* @param[in] baseVector : pixel coordinates of the heart
 	* @fn void drawHeart(const Position& baseVector) const;
 	*/
-	void drawHeart(const Position& baseVector) const;
+	virtual void drawHeart(const Position& baseVector) const;
 	
 	/*!
 	* @brief display a sprite on screen
diff --git a/src/pixelManager/goodPixelManager.cpp b/src/pixelManager/goodPixelManager.cpp
index a891308..98a13b7 100644
--- a/src/pixelManager/goodPixelManager.cpp
+++ b/src/pixelManager/goodPixelManager.cpp
@@ -8,8 +8,37 @@ void GoodPixelManager::loadSprites(vector<Task>& tasks) {
 	ADD_SPRITE_TASK(invaderC)
 	ADD_SPRITE_TASK(missile)
 	ADD_SPRITE_TASK(torpedo)
+	ADD_SPRITE_TASK(heart)
 }
 
 GoodPixelManager::GoodPixelManager(MinGL& win) : PixelManager(win) {
 
 }
+
+void GoodPixelManager::drawInvaderA(const Position& baseVector, unsigned size, const RGBAcolor &color) const {
+	drawSprite(invaderA, baseVector);
+}
+
+void GoodPixelManager::drawInvaderB(const Position& baseVector, unsigned size, const RGBAcolor &color) const {
+	drawSprite(invaderB, baseVector);
+}
+
+void GoodPixelManager::drawInvaderC(const Position& baseVector, unsigned size, const RGBAcolor &color) const {
+	drawSprite(invaderC, baseVector);
+}
+
+void GoodPixelManager::drawPlayer(unsigned x, unsigned width, const RGBAcolor& color) const {
+	drawSprite(player, Position(x, getScreenHeight()-PLAYER_HEIGHT));
+}
+
+void GoodPixelManager::drawMissile(const Position& baseVector, unsigned width, const RGBAcolor& color) const {
+	drawSprite(missile, baseVector);
+}
+
+void GoodPixelManager::drawTorpedo(const Position& baseVector, unsigned width, const RGBAcolor& color) const {
+	drawSprite(torpedo, baseVector);
+}
+
+void GoodPixelManager::drawHeart(const Position& baseVector) const {
+	drawSprite(heart, baseVector);
+}
diff --git a/unconverted_assets/missile.png b/unconverted_assets/missile.png
new file mode 100644
index 0000000..6f21c6f
Binary files /dev/null and b/unconverted_assets/missile.png differ
diff --git a/unconverted_assets/player.png b/unconverted_assets/player.png
new file mode 100644
index 0000000..3c9f4fe
Binary files /dev/null and b/unconverted_assets/player.png differ