Good games should be portable, accessible, and reproducible.
It is necessary to develop a loosely-unified theory of how video games should be controlled depending on the complexity of the game and available input devices.
Many games have an interesting historical context with obscure original titles that spawned many imitators.
Keyboard inputs: A, B, , Esc, ↹ Tab, ⟵ Backspace, ↵ Return, ↑, ←, →, ↓.
Joystick inputs: S, E, TR, ZR.
⌅ Enter