Contribute correction: MSX Invaders! (unreleased)

           _    _     ______     ___    
  ____    | || | ||  /_____//   / _ \\  
 |    \\  | || | ||  `____ `   / //\ \\ 
 | [] ||  | \\_/ ||  /___//   |  ___  ||
 |  __//   \____//   `__ `    |_||  |_||
 |_|`-`     `---`    /_//     `-`   `-` 
 `-`                 `-`