Higher settings march the column along faster, send more ants per wave, add a colour to juggle, give the burrow less room before it gives out, and put more words in play at once — more to read, but more room to find a cascade in.

The ants nearest the burrow carry the words, each with a different starting letter so a keypress is never ambiguous. The rest show only their colour, which is what you plan cascades on.

Fades a keyboard across the play field and lights up the next key, colour-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.