<div class="entry-game">
                <?php
                    $swf_gameurl = get_post_meta( $post->ID, 'swf_value_key', true );
                    $embed_code = get_post_meta( $post->ID, 'embed_value_key', true );

                    $print_game = $swf_gameurl === '' ? $embed_code : $swf_gameurl;

                if ( $print_game === $swf_gameurl ) { ?>
                    <object type="application/x-shockwave-flash" width="900" height="520" data="<?php echo $swf_gameurl; ?>"><param name="movie" value="<?php echo $print_game; ?>" /></object>
                 <?php } else { echo $print_game; } ?>
            </div>