In this episode, despite all the victories in the world, Mikey realizes it's impossible for everyone to leave Underworld alive. Turns out Underworld isn't all that picky about who it takes.
In this episode, Ewan and Mikey have a swordfight where they try to pierce the rose on the other's chest. ZETTAI! UNMEI! MOKUSHIROKU!
In this episode, Gravimon ensures his immortality by embedding a key piece of his soul within his main enemy, a strategy which has never backfired at any point in literary history.