Did you know that there is a Mass proper for Shrove Tuesday? It’s a Votive Mass in Honor of the Holy Face of Jesus. … Missa Votiva in honorem “Sacri Vultus”, which is celebrated in Red.
The Introit is “Humiliavit semetipsum“.
There is a similar Mass on Tuesday of Septuagesima (the Agony in the Garden) and Tuesday of Sexagesima (the Column of the Flagellation).
In fact, there were/are Votive Masses for all the “arma Christi“, the instruments of the Passion. I believe this was promoted by the Passionists.