Tetris game by Igor Pro

That is awesome!

Please, can we also have Space Invaders?

The answer is undoubtedly yes, but I have to learn how to play Space Invaders first:)

On Windows, after pressing the Start button, the space key restarts the game.

This is the solution:

Function ButtonProc(ctrlName) : ButtonControl
    String ctrlName
    Button $ctrlName, disable=2 // so that the space key doesn't restart the game
    startgame()
End

Function endgame()
    ctrlNamedBackground task1,proc=RunningGame,stop
    ctrlNamedBackground task2,proc=playbg,stop
    wave bg0
    Playsound/A=2 bg0
    Button button0, disable=0 // allow restarting the game
End

A very well done game!