Lonely Heart

@P_simorf With the wedge at the end to stop the knockable, it slides just a little further than it would if there were a sideways pillar there instead - this creates a small gap at the base of the knockable, and the ball gets stuck there.

@Sun Eagle I don't do difficult... I don't know how.

Bonus material: search YouTube for the Japanese metal band Show-Ya (their cover of "Do Whatever You Want" jEh7pzmYO1g, "One Way Heart" wB68YLrtepk, and "Fairy" v2zFRCj0ml8) Fairly standard metal, but if anyone tells you that women can't rock, you smack them in the head with these. And yeah, their drummer Miki "Mittan" Tsunoda is just as psycho as any rock drummer.

@Ray Aznable Aside from the three groups mentioned here (two in the first comment, and one just above this comment), there's also the group Baby Metal, which is closer to J-pop than it is metal. Those are the groups that I know about, but there are plenty more out there, and it's no surprise, as the Japanese are really into rock and metal. A lot of well known bands record their live albums in Japan, such as KISS, Cheap Trick, Judas Priest and Scorpions.

sugooiii ne mr. scott...
you even know some girlband mixed into metal,
having 3 girls as vocalist with high pitched voice.
I thought u only like old school rock and metal.
where usually the vocalist has bass voice.

btw,
thanks alot for this.
i like her voice character...

also this one, NEVER KNEW that scorpion,
legendary band, ever sang a song in japanese

doesnt like KISS but they gave alot of influence
to japanese rock band then have harajuku style.

@Ray Aznable I didn't say that I liked Baby Metal (I don't), just that I knew about them...
There's also the Japanese speed metal band Lovebites, which is pretty good, but I noticed that a lot of Indonesian metal bands are death metal (such as Gungat), which I don't like. Seringai is a good speed / thrash metal band, though the few videos of theirs that I saw are a little weird.