For this project in my group, my contribution is just like everyone we share our idea about the tower defense game before discussing further what we should implement and what not. I didn’t make the program but instead i only help what my group do such as to help making the cannon tower mechanics, help searching the website to get the enemy character, testing the game to get the difficuly we want, check for bug in the game, proofread my friend text for the story, help create the document and proofread it, create the video for the project demo and publish it in youtube.