Debug

Very nice turntable mechanism! Somewhat reminds me of @Martin Magni 's Crank It Up. But before I rate it......

Spoiler

After removing all the zapper bots, I actually unlocked the draggable goal by getting the ball (the one that stops at the two ground wedges) into the gap as a spacer, and shifted the free block. I did this by launching the ball up against the slope, and as soon as the ball stops right next to the target hole, B moves in to push the ball inside. Yet I feel like I haven't used every mechanism in the level......

There you go! First rating
No worries, I'm not saying that the level feels "incomplete", just wasn't quite sure if I've solved it in the right way. It was complex enough and surely did take me a while to figure it out. The turntable has its potential -- if I were you I might probably connect the four horizontal "pushing" bars to more stuff and make a giant machine (if there's still enough space).

Oh, and the gramophone design looks amazing too!

As for the resemblance to Crank It Up's mechanism, I think it's also worth mentioning that Martin might have been aware of its effect as a jump button (i.e. using a draggable block to push another sliding block). It's actually very similar to what @vince has created in Jumpy

@Rohan Kumar There's a way to get B onto the Win if you don't throw it away