Write Script to Make Player Score via eating Coins, Move Enemy Player, Enable FB Invite & add Daily Notification system in 2D Game

The project is as simple as written above. You must read the description carefully and then bid your amount. because the bid amount posted by you will be considered your final word. You must use Unity3d 5.5.0f3 for this work only. --- You have to write the script to generate coins as a prefab in the scene , so when bird collect it, his score counts. --- You have to write a script to move a sprite as an enemy so the player got die when collide with it in a 2D game (this object will be move and generate like pipes as shown in attached video). --- You have to write a script to use the Facebook SDK in the game via which the user will invite his fb friends to beat his score in the game. --- You have to write the script to add and make functional the daily notification system, via which we can send the message to app users to reengage them. all the assets and required sdk files will be provided by me. There is no extra work you have to do this. The video has been attached so you can better understand that where you must put coins and also how to operate and move the enemy player. My budget limit is final and i can't pay more as i am a college student. But if this work ends well, i can work with you more on upcoming projects.