Good little project. Should definitely port it to mobile. A few suggestions though, first when i was playing my screen would occasionally shake which didn't look good, second there should be a button to go back to the menu as well as quit the game, I know this was just a small project but idk. Last i think the balancing could be improved, again I know this was just a small project, but there is room for growth, like a ranking system where you face better opponents as you upgrade your horse.