Personally when playing I expected the cyclops to eventually squash enemies. Like snake but then gaining points by having your tail hit stuff and grow, and it becoming hard to navigate.
After reading I saw it was possible to do a main attack.
Main difficulty increase here comes by making it hard to see what is happening because of the size of the cyclops and screen shake. While navigating towards the food without hitting enemies.
Theme implementation is solid, and its fun to play for a couple loops. Well done!