L1 L2 R1 R2

Trigger buttons are interesting.  They face away from the player, you don’t look at them, they’re identified loosely by shape.

Glancing at a control prompt, a shoulder button (L1 or R1) is flatter, and the trigger (L2 or R2) is a taller shape.

I really like the PlayStation 4 controller.

Its triggers have well defined shapes, that also fit nicely into a square – which is convenient when making emoji-like control prompts.

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