This is a motion sensing game wave your hand at the balloon and it should pop and the score goes up is the balloons touch the "floor" the score will decrease and the balloons will regenerate at the top in different colours and varieties
I got this from AGB tutorials I would like to thank him/them and I recommend you try this the link is in this description. Have fun. Enjoy! Link: https://www.bing.com/videos/search?q=how+to+make+a+video+sensing+game+in+scratch+pop+the+balloon&adlt=strict&view=detail∣=F7BDE8AB4E52385A2C27F7BDE8AB4E52385A2C27&&FORM=VRDGAR&ru=%2Fvideos%2Fsearch%3Fq%3Dhow%2520to%2520make%2520a%2520video%2520sensing%2520game%2520in%2520scratch%2520pop%2520the%2520balloon%26qs%3Dn%26form%3DQBVR%26%3D%2525eManage%2520Your%2520Search%2520History%2525E%26sp%3D-1%26pq%3Dhow%2520to%2520make%2520a%2520video%2520sensing%2520game%2520in%2520scratch%2520pop%2520the%2520balloon%26sc%3D0-59%26sk%3D%26cvid%3D853158D604554EBEA1BBF6B5990767D9%26ghsh%3D0%26ghacc%3D0%26ghpl%3D%26adlt%3Dstrict%26toWww%3D1%26redig%3DB1D5F84B6E87475E99E651D80576E93B