I've been wanting to watch a few of the old game developer conferences which have been about Sonic in some way. And... These aren't easy to find, let alone remember which ones exist. I know of these two: 1: Classic Game Postmortem: Sonic The Hedgehog 2: Global illumination in Sonic Unleashed But I'm sure I've seen clips and screenshots from others, I'm sure there was focused on Sonic Forces that happened to get lampooned a bit because they showed one stage but all the boosters had been replaced by spikes and called it "Bad design" not realising the irony of the final stage. Is there a list of all these anywhere?