This page is based on information contributed by Thierry Depaulis. Aluette is a very peculiar trick-taking game where suits are irrelevant.
Partners use mimics to signal their hands.
The use of Spanish suited cards is surprising, but there is a theory that these suits were originally used throughout France and were displaced in most of the country by French suits when those were invented. Rules in English will be given here eventually. Meanwhile here is a link to an Aluette page in French, with illustrations of some of the cards.