Hope

Hope is an unlockable Challenge Mode archive in Child of Eden. It does not feature a boss or any rewards for beating the archive. Unlike other archives, Hope is split into levels, much like a sub-system from Rez.

This stage may take place sometime after the main events of the game, where Lumi is beginning to become Eden, but as she is reformatting, some viruses Sara forgot to purify re-emerge.

Music
The archive's music is the only Child of Eden song not based off of a Genki Rockets song. Instead, it pulls heavy inspiration from the song Rock is Sponge by Joujouka, the base song used in Area4 of Rez.

Trivia

 * Hope may be a homage to Rez, shown through the level and virus design.