Melbourne's BEST chocolate truffles

These are Melbourne's BEST chocolate truffles. No argument. No discussion entered into. I've certainly tried quite a few in my life, and sampled those which are supposed to be the best or the most expensive (note: these two things usually go together).
Last year, when I returned to study, my campus was in the busiest shopping street in Melbourne's CBD. My friends and I took to exploring the laneways and arcades when we'd have a free 30 minutes (which wasn't often enough!). During winter we started a quest to find Melbourne's best hot chocolate, which is how we found this place. Well, it was a bit hard to avoid; it is possibly Melbourne's most high profile chocolatier, at the moment. Based on that, I was pretty certain I'd be disappointed. High profile doesn't necessarily mean high quality, and that belief certainly fit for their overpriced, over-hyped hot chocolate, but these truffles...ohmygawd! Scoops of bitter dark chocolate ganache are coated in a thin shell of dark chocolate and tossed in cocoa and make the most incredibly decadent treat. They're quite bitter, and I don't think they'd be popular with kiddies, or people whose idea of chocolate bliss is a Freddo Frog. But to taste the bitter powder of the cocoa on your tongue, to break through the shell and taste the quality of the ganache and the hint of vanilla is to know what sublime chocolate bliss is like. These s*** on all other contendors from a great height! And they're not even too expensive; packets of 4 are $4, so (obviously) equals $1 each, which is only a few cents more than a Lindt ball.
The chocolatier is Koko Black - the licensed Belgian chocolate lounge in the Royal Arcade, just off the Bourke Street Mall. If you're really lucky, you can get a table upstairs and watch the crowds below.
The truffles in the photos didn't hold up too well on the trip home, and got a but squooshy. I couldn't decide which photo I liked better, so I had to include them both. Any suggestions? Which one do you like better?