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CliffyB's Cock Holster
Lots of good stuff in the stream, even if you don't understand a word of Japanese.
Shows a few things I missed in the demo (2nd shortcut, hidden chest), plus quite a lot of system stuff in the city; quests, abilities, countering and "bullet" time effects.
Also, SE really seem to be pushing this game pretty hard in Japan. Tons of merch on top of the cross-over stuff. I really want that Emil pillow lol!