Left and right arrow keys (or a and d) to move in their respective directions. Up (or w) to jump. Better not in full screen.
I made all of the sprites and the levels. October 30, 2018 - Release (Levels 1-4). October 31, 2018 - Levels 5 and 6 released. Lag fixes. New secret level skip hidden in one of the levels. November 1, 2018 - Level 7 released.