Here's the error messages with all the extra taken out. IDE version 1.66
Arduino: 1.6.6 (Windows 7), Board: "Arduino Leonardo"
Build options changed, rebuilding all
Picade:15: error: 'KEY_UP_ARROW' was not declared in this scope
Picade:16: error: 'KEY_DOWN_ARROW' was not declared in this scope
Picade:17: error: 'KEY_LEFT_ARROW' was not declared in this scope
Picade:18: error: 'KEY_RIGHT_ARROW' was not declared in this scope
Picade:20: error: 'KEY_LEFT_CTRL' was not declared in this scope
Picade:21: error: 'KEY_LEFT_ALT' was not declared in this scope
Picade:23: error: 'KEY_LEFT_SHIFT' was not declared in this scope
Picade:29: error: 'KEY_RETURN' was not declared in this scope
Picade:30: error: 'KEY_ESC' was not declared in this scope
C:\Users\Bob\Documents\Arduino\Picade\Picade.ino: In function 'void update()':
Picade:87: error: 'Keyboard' not found. Does your sketch include the line '#include '?
if(state){ Keyboard.press(inputs[i].key);}else{Keyboard.release(inputs[i].key);}
Picade:87: error: 'Keyboard' not found. Does your sketch include the line '#include '?
if(state){ Keyboard.press(inputs[i].key);}else{Keyboard.release(inputs[i].key);}
exit status 1
This report would have more information with
"Show verbose output during compilation"
enabled in File > Preferences.