You are running the fireworks — keep the crowd on their feet
Press any letter to start
Sets how fast the shells fall, how many are in the air at once, and how quickly the crowd's interest fades with nothing to look at.
In the other games this narrows the vocabulary. Here there is no vocabulary — it narrows the alphabet falling on you, so the setting is the drill rather than a filter on it. Every shell in the air wears a different letter, so a keypress is never ambiguous.
Fades a keyboard across the sky and lights up every letter currently in the air, color-coded by the finger that should press it. When stuck keeps it hidden until you miss three keys in a row, then shows it until you get one right.