In-game Keys
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Joystick / Touchscreen / Mouse - Move cursor
A - Left-click
B - Right-click
Y - Middle-click
L - Decrease current digit (some games)
R - Increase current digit (some games)
X - Enter current digit (some games)
Start - Start Game / Pause Game / Enter Menu
Select - Restart Game
Hold L and Vol- to Undo.
Hold L and Vol+ to Redo.
Hold Vol- and press Vol+ to Solve (some games).

L+R - Return to the list of games.
Hold L when starting a game to skip any saved settings.
