First off, let me state that I'm not sure that "cultureshock" is the right term. My personal definition in a gaming context is when you switch consoles or platforms or play a different franchise or genre, and are amazed/bamboozled/pissed off/confused about it. For me, it was the controller on Xbox. My gaming life goes like this: GBA, DS Lite, PS2, PS3, XBOX, XBOX 360, PC (in that order). So when i played an XBOX I was surprised AS HELL. The trigger buttons made my fingers SWEAT, and the absent L2 R2 buttons drove me crazy. Thats another little cultureshock as well, I had NO idea that people even used them, jeez when i search for PS3 controller related forums its mostly about the crappy triggers. For me, the R1 L1 system was the way to go, and it made way more sense to me.(Question: do you know a game on the PS3 that used the triggers to fire?) The joysticks felt weird and uncoordinated. The huge arse cable sucked more male genitalia then a French exotic performer from the 1800s. And worst of all... the weight, dear God, the weight! I swear my whole body was shaking in exhaustion as I played Call of Duty Big Red One. Why would anyone play like this? Till now I cant deal with it, thank God I managed to adapt to a keyboard. So when I (hopefully) get a PS4, pretty sure I'm gonna suck for quite some time.
Some smaller examples: playing an old FPS and being shocked at the iron-sight-less-ness of it all, the weird Halo controls, with fullscreen zooms, the Mortal Kombat, er, combat (the way you had to move the sticks as well as press the buttons was new to me)
Some smaller examples: playing an old FPS and being shocked at the iron-sight-less-ness of it all, the weird Halo controls, with fullscreen zooms, the Mortal Kombat, er, combat (the way you had to move the sticks as well as press the buttons was new to me)