It would be easier if Sony had picked a button scheme that made any sort of obvious sense.
Square, Triangle, Circle, and X don't exactly make any sense at all.
Since they decided to pick something "different" and make absolutely no sense in the process (X would make sense as the universal equivilent of "B", but... it doesn't do that. And "O" would make sense as the equivilent of "A", but again... no. Brilliant), it's not common sense to think "Ah, yes. Square is the button I press to do this. Not Circle, not Triangle. Square."
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