Update, I got a bit of a late start, but the day before I managed to make an almost complete bad looking clone of flappy bird so have a little bit of understanding of how things work in Unity, very basic.
I have a idea I think will be fun.
I have made a player controller.
I have made an enemy that I can kill.
I'm further than I thought I would be lol. Still plenty of time. Thanks for all the help so far.