Use the mouse and hold the left mouse button to draw a level to get to the flag. Use the "A" key to move left and the "D" key to move right. Get and touch the flag to triumph over others. To toggle all your scores, press the "W" button on your keyboard. To toggle HUD, use "S".
The "bug" where you draw in the sprite and press space to elevate the player is a feature, not a bug. The drawing mechanic is Wacom tablet™ compatible if you have a keyboard with it. I used the dream speedrun music.