Blue Heaven, previously known as Chaos Zone, is a level pack for Version 1.09.4 made by Tets. The last release, v0.5.3, contains five zones and five Special Stages, while the final version was supposed to span eight zones. An update for Version 2.0 was in the works, but according to Tets, development on it has stalled. Notably, the first two zones of Blue Heaven use music borrowed from Sonic: Emerald Quest.
Blue Heaven contains five zones, each of which consists of two acts. Every second act has a portal at the end that leads to a boss fight within the same level. Three additional zones were planned for the pack but never added. One of these, Arid Ruins Zone, had both acts released in the Official Level Design Contest. The remaining two, Underwater Zone and Incredible Crisis Zone, were never made.
|v2.1||Acid Missile • Dumbventure • Mystic Realm • Tortured Planet|
|v2.0||Botanic Serenity • SRB2CB • SRB2 Riders • XSRB2|
|v1.09.4||Blue Heaven • ShufflarB2 • SRB2JTE|
|v1.08||SA-SRB2 • SPMoves|