CMB2 Multicheck showing key instead of value - wordpress

Question

I have added this multi-check field in WordPress user profile page
$tprofile_user_fight_info->add_field(
array(
'id' => '_user-fighting-style',
'name' => __( 'Your fighting styles', 'tprofile' ),
'type' => 'multicheck',
'options' => array(
'fs_one' => __('MMA', 'tprofile' ),
'fs_two' => __( 'Kikboxing', 'tprofile' ),
'fs_three' => __( 'Boxing', 'tprofile' ),
'fs_four' => __( 'Judo', 'tprofile' ),
'fs_five' => __( 'Taekwondo', 'tprofile'),
'fs_six' => __( 'Karate', 'tprofile' ),
'fs_seven' => __( 'Brazilian Jiu-jitsu', 'tprofile' ),
'fs_eight' => __( 'Wrestling', 'tprofile' ),
'fs_nine' => __( 'Capoeira', 'tprofile' ),
'fs_ten' => __( 'Muay Thai', 'tprofile' ),
'fs_eleven' => __('Karate Kyokushinkai', 'tprofile' ),
'fs_twelve' => __('Kudo Daido Juku', 'tprofile' ),
)
)
);
And I am trying retrieve the checked values in wp_list_table. But in the table there showing the keys instead of values. Please help me, how can I get the values in the table? Below is the code where I trying to retrieve the values:
$tprofile_users = get_users( array( 'role__in' => array( 'subscriber' ) ) );
foreach( $tprofile_users as $tprofile_user ){
global $current_user;
$user_id = $current_user->ID;
$tprofile_user_cmeta = get_the_author_meta( $user_id );
$data_array[] = [
'fighting_style' => esc_html( $tprofile_user->$tprofile_user_cmeta['_user-fighting-style'][0] ),
}
return $data_array;
Result is showing like this:
a:3:{i:0;s:6:"fs_one";i:1;s:7:"fs_four";i:2;s:8:"fs_eight";}