T2 = pygame.time.get_ticks() all_sprites.update() if c is 0: if T2 - T1 > 2000: m = Mob() c = 1 d = 0 all_sprites.add(m) mobs.add(m) if d is 0: if T2 - T1 > 8000: T1 = T2 c = 0 m.kill() else: if T2 - T1 > 13000: T1 = T2 c = 0 m.kill() fits = pygame.sprite.groupcollide(mobs, lifers, False, True) for fit in fits: d = 1 fit.image = pygame.transform.scale(change_img, (60, 60)) fit.image.set_colorkey(BLACK) hits = pygame.sprite.groupcollide(mobs, bullets, True, True) for hit in hits: score += 10 T1 = T2 c = 0