Программа не воспроизводится

Пишу игру, параллельно практикуя ООП, после вызова функции menus_play(), программа не воспроизводиться дальше, код:

class Batton:
    def __init__(self, x, y, xx, yy, xxx, yyy, image, image_fon):
        self.x = x
        self.y = y
        self.xx = xx
        self.yy = yy
        self.xxx = xxx
        self.yyy = yyy
        self.image = image
        self.image_fon = image_fon

    def battons(self):
        for ev in pygame.event.get():
            mouses = pygame.mouse.get_pos()
            if ev.type == pygame.MOUSEMOTION:
                if self.x <= mouses[0] <= self.xx and self.y <= mouses[1] <= self.yy:
                    self.x -= 2
                    self.y -= 2
                    return screen.blit(self.image, (self.x, self.y))
                else:
                    return screen.blit(self.image_fon, (self.xxx, self.yyy))
def menus_play():

    batton_menu_play = Batton(308, 435, 488, 482, 279, 334, menus_plays, menu)
    batton_menu_play.battons()


screen.fill(bd_color)

screen.blit(menu, (279, 334))

while True:
    menus_play()
    for ev in pygame.event.get():
        if ev.type == pygame.MOUSEBUTTONDOWN:
            if x <= mousess[0] <= xx and y <= mousess[1] <= yy:
                print("dd")
        pygame.display.flip()