function plt_hide_wpuppy_menus() {
//Hide the "WPuppy" menu.
remove_menu_page('wpuppy/wpuppy-admin.php');
//Hide the "WPuppy → WPuppy" menu.
remove_submenu_page('wpuppy/wpuppy-admin.php', 'wpuppy/wpuppy-admin.php');
//Hide the "WPuppy → Settings" menu.
remove_submenu_page('wpuppy/wpuppy-admin.php', 'wpuppy/wpuppy-settings.php');
}
add_action('admin_menu', 'plt_hide_wpuppy_menus', 11);