Hey what if there was a game where there was a guy that you could customize and all the levels are huge giants and you have to kill them all. No enemies except the giant and it's really hard to get up to the top to kill it.
There is already a game sorta like this without the customization. Each level is the monster you have to kill. It's short though. And the point is to get to the top. It's called The Heir I think.