Heartwarming / Mario & Luigi: Superstar Saga

  • Every time Mario and Luigi share a hug when they meet after being separated.
  • When either one of the brothers suffers a KO in battle, the one still standing gets an absolutely horrified expression, rushing over to the fallen one and supporting his unconscious body.
http://tvtropes.org/pmwiki/pmwiki.php/Heartwarming/MarioAndLuigiSuperstarSaga