Simple, but fun and effective! The one thing I might recommend is maybe some invisible boundaries (or a screen wrap) on at least the top and bottom - I wasn't sure if I would loop to the top if I went off screen on the bottom, and I just ended up going pretty far off screen haha. I was able to return to the game, so it's not breaking anything, might just confuse some folks! Can't wait to see what else you got in store for us!