Remove SHIFT Mode

This tutorial details how to permanently turn off the SHIFT battle style, or in other words, making the SET battle style permanent.

Open the file engine/menus/main_menu.asm and delete (or comment out) the following line.

...
.cursorInBattleStyle
        ld a, [wOptionsBattleStyleCursorX] ; battle style cursor X coordinate
-       xor $0b ; toggle between 1 and 10
        ld [wOptionsBattleStyleCursorX], a
        jp .eraseOldMenuCursor
...

This disables the ability to move the cursor in the "Battle Style" options. Next, head down a bit more and delete the word SHIFT and replace it with 5 spaces to keep SET in the correct position.

...
BattleStyleOptionText:
        db   "BATTLE STYLE"
-       next " SHIFT    SET@"
+       next "          SET@"
...

This removes the presence of SHIFT in the options menu. Lastly, when you start the game for the first time, you may remember that the cursor is automatically set to SHIFT mode, so we need to initialize it to SET mode. Make the following change to correct this.

...
.storeBattleAnimationCursorX
        ld [wOptionsBattleAnimCursorX], a ; battle animation cursor X coordinate
        hlcoord 0, 8
        call .placeUnfilledRightArrow
        sla c
-       ld a, 1
+       ld a, 10
        jr nc, .storeBattleStyleCursorX
        ld a, 10
...

That's it. Now you can force yourself and others to play the real way.