Bifröst can be accessed in Act 7 Town by inserting a Bifröst Key into the slot in the top right corner. The user can then enter the portal above and choose between two of the options listed below.
Sheeponia
20%
Sheep Level, same as using Edible PAS Logo
Edible PAS Logo
Mists of Chaos
13%
Zone with five Chaos Shrines, most Ancient Monsters here have the Fallen Angel modifier
Challenge Dungeon
12%
Random Key Dungeon with a random amount of Keys used. (1, 3, 6, 12)
Ruby Garden
8%
Ruby Key Zone. Has a few Ruby Chests.
Ruby Key
Niflheim
8%
Zone with an increased rune drop rate.
Asgard
8%
Zone with special Mining Nodes (Mining Level 1000 required) which drop all kinds of ores when mined.
The zone is occupied by Nagas.
Uber Boss
8%
Random Uber Boss, such as Sung-Lee or Uber Reaper.
HP
Uber Damien
Inferno HP is higher than normal scaling (25% more)