This game has a really cool idea so I’m sharing it with you all!
LoL this gameplay same as my made-by-myself second game in my journey of learning java 
of course mine is more simple and bad designed, and use a random image without permission (I think it’s alright just for pratice) 
First time I found this kind of game at a Japan site about a year ago. Unfortunately I didn’t save the link but still can be traced now.