I currently use a query_posts to show theese custom posts but I'm pretty sure that I should uses get_posts() to write it correctly.
<?php query_posts( array( 'type-mario' => 'games', 'showposts' => 10 ) ); ?>
<p>Mario games</p>
<?php while ( have_posts() ) : the_post(); ?>
<div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
<h2><?php the_title(); ?></h2>
</div>
<?php endwhile; ?>
<?php wp_reset_query(); ?>
Thanks for your advices.
Edit, Solved, Thanks to MikeSchinkel !!!!
<?php $posts = new WP_Query(array(
'taxonomy' => 'type-mario',
'term' => 'games',
'posts_per_page' => 10
)); ?>
<p>Mario games</p>
<?php while ( $posts->have_posts() ) : $posts->the_post(); ?>
<div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
<h2><?php the_title(); ?></h2>
</div>
<?php endwhile; ?>
<?php wp_reset_query(); ?>