The Menu Items

Game->New (Ctrl+N): Starts a new game.
Game->End Game (Ctrl+End): Ends the current game.
Game->Pause (P): Pauses or resumes the game.
Game->Show High Scores... (Ctrl+H): Opens a dialog that displays different high score tables.
Game->Quit (Ctrl+Q): Quit and close KBounce. If a game is currently played, it's status is lost

Settings->Show Toolbar: Shows/hides the KBounce toolbar.
Settings->Show Statusbar: Shows/hides the KBounce statusbar.
Settings->Play Sounds: If checked, KBounce game sounds are played.
Settings->Configure Shortcuts...: Opens a standard KDE shortcut configuration dialog, in which you can change the keyboard shortcuts used by KBounce.
Settings->Configure Toolbars...: Opens the standard KDE toolbar configuration dialog to customize the KBounce toolbar.
Settings->Configure KBounce...: Opens a dialog to customize the game. It allows to select themes.

Help->KBounce Handbook (F1): Invokes the KDE Help system starting at the KBounce help pages. (this document).
Help->What's This? (Shift+F1): Changes the mouse cursor to a combination arrow and question mark. Clicking on items within KBounce will open a help window (if one exists for the particular item) explaining the item's function.
Help->Report Bug...: Opens the Bug report dialog where you can report a bug or request a “wishlist” feature.
Help->About KBounce: This will display version and author information.
Help->About KDE: This displays the KDE version and other basic information.