This function will reset all achievements back to their initial values for the game. This function is provided as a debug function and it is not recommended that you permit the end-user to do this in your games.
achievement_reset()
N/A
if debug_mode
{
if keyboard_check_pressed(vk_space)
achievement_reset
}
The above code checks to see the game is in debug mode, and if it is pressing "space" will reset all the achievements.