It was this deliberately, kind of, jangly, jokey children's joke rap track.

这是故意，有点刺耳，开玩笑笑话说唱曲目。

The belief that this time, the pull of a lever will bring flashing lights and jangly music.

相信这，动控制杆就会带来闪烁灯光和刺耳音乐。