Risus uses a cliche system clearly influenced by Atlas Games[?]' Over the Edge[?] and is also similar in some ways to Unknown Armies[?], another "skill-list-less" system.
... sclerosis Anablephobia[?] Anaphylaxis Anaplastic thyroid cancer[?] Andersen's disease[?] Andre syndrome[?] Androgen insensitivity syndrome (AIS) Anemia ...