In the toy store called "Toy Uncle", the player will find various Mega Man merchandise such as action figures and helmets which are based on the infamous design for the North American box art for the original Mega Man.
Before Jill enters the bar with Brad, there's a stand sign of Morrigan Aensland from the Darkstalkers series. Underneath the title of 'Halloween Cocktails', the drinks' names (Darkness Illusion, Cryptic Needle, Shadow Blade and Astral Vision) are references to Morrigan's moves.
At the start of the demo, you can see a poster in the subway for "Science Forum" with the question "Will Robots Surpass Humanity?" featuring Dr. Light and Dr. Wily. This is a reference to the two scientists from the Mega Man series.