RPG Maker VX Ace lacks the ability to flip pictures and show a mirrored version of them. Now, through the aid of a switch, you can mirror pictures once that switch is on, and unmirror pictures once that switch is off.
Bind the FLIP_PICTURE_SWITCH constant in the module to a switch strictly used for flipping pictures. Remember this switch ID (best if you rename it in the switch list, too).
Turn on the switch and any picture events following will be mirrored. Turn it off and following picture events will be normal (un-mirrored). Following the example in the event window:
Display Picture 1 Switch Operation: [0021: Flip Picture] = ON Display Picture 2 Switch Operation: [0021: Flip Picture] = OFF Display Picture 3
Picture 1 will be normal. Picture 2 will be flipped. Picture 3 will be back to normal.
— And that’s all, folks! —