Refers to the two rogue dungeonsSuper Ultimate Colosseum” and “Ultimate Annihilation Colosseum” in Technical Dungeons and are respectively nicknamed “Colo1” and “Colo2” to reflect the order in which they were released. Both dungeons cost 200 stamina. Colo2 is unlocked upon completing Colo1. The dungeon information is linked below, courtesy of PDX.

If attempting the dungeon solo, be wary of the special mechanics common among all rogue dungeons; all monsters start at Level 1 and level up after clearing a floor. The leveling rate for every monster varies, depending on team cost. Here is a link to a spreadsheet which depicts the leveling rate of all rarities in Colo2. Remember, super awakenings do not function until the monster reaches Level 100 in solo gameplay!