Ika Musume 2 ep4

They were playing Virtua Fighter in the second skit of the episode, on a console that certainly looks like a Megadrive with a 32 X.
Also when Chizuru threatened Ika after she tried to tickle her, when she moved her arms,  those sounds effects sounded to be from Hokutou no Ken. I saw too many old things related references in Ika Musume to think they didn’t know what they were doing.