"Return to titlescreen" cleanup issue

[AlexKhayrullin]

Enter the level select code.
Play through VVZ Act 2 Future and defeat the boss.
Finish the zone (including destroying the flower capsule), but don't go through the pipe that leads to DDZ Act 1.
Open the menu and return to the title screen.
With level select, pick VVZ Act 2 Past.
A weird transition plays (fade to black) . When the act starts, the music does not play and the controls do not work.

It looks like the function that replaces game_restart still does not clean up everything.