You can swap out the card pillado debajo del deck with a 2 at the beginning of the game before the first round, orwith the 7 at any point in the game.
When playing 3 player, remove a 2.
Total number of points is 120. When playing with 2 people, or 2 teams of 2, the threshold to win is 60 points. With 3 it should be 40.