this game uses more than three buttons. i count A, D, M, Enter, and LMB for a total of at least five if i haven’t missed any. but the winning strategy is to just sit in one place and click directly above you over and over again, rendering A and D useless — a good thing, since the use of key names rather than scancodes makes this unplayable on some keyboard layouts. navigating the menus with your movement keys and the dash button would have worked just as well and stayed true to the “three buttons” limitation