Day 4 or 5 is dedicated to the game. Today, I managed to implement and complete the character selection screen. Both player 1 and player 2 can choose any character from the 8 planned in the roster (though not all are finished).
It took me a while, but I got it to work. Tomorrow I will have some free time and implement the drawing of characters in combat, making their frames appear at the necessary moments. With that, I can move on to a stage selection between character selection and combat.
Any feedback is welcome!