This is The Fixit Pack which includes Joe Fixit Noir suit, Green Hulk Variant as well as Mid Hulkout Banner.
Following is the method to install the skin.
1. Download Dolphin Emulator
2. Go to My Documents/Dolphin Emulator/Load/Textures/ and
create folder named GHUP7D.
3. Launch the emulator, go to Advanced and then Graphics,
click on Load Custom Textures and close the emulator.
4. Start the game and enjoy.