Very addictive! At first I overlooked that you can call back your bullet (I just wish, that you could call it back already while it's still flying) and it took me a few more tries to realize, that you can also teleport the character to the bullet. Really dig the later stages, the difficulty ramps up quite a bit there! I would like to get more points though, when killing multiple enemies with one shot. Also it's easy to lose track of the ball, as it can leave the screen. I think I would prefer it bouncing back from the edges.
My game: https://njamster.itch.io/wonkey (playable in browser, not mobile friendly)