Out of the blue, Sebastia asks Aldo and the others to come see her.
She's got plans for them concerning a certain "battle simulator"...
Other used names: Boss Rush, Revival: Duel with the Past
Battle Simulator was added in game Ver 2.7.500, located in Elzion in Sebastia's Lab. This mode is available on completion of chapter 25. If Sebastia is not in the area due to current quest progress, then you cannot start the event.
Boss Rush allows you to fight multiple bosses at the same time, and the bosses will be the bosses that Aldo and company had met throughout their adventures.
All stages are given a difficulty level where the higher the number, the more prepared the player needs to be. Stages also give optional missions that require you to clear the battle to gain the unique reward. Completing trials will also unlock unique cutscences that can be replayed. It should be noted that you will be unable to swap parties and eat food in between waves.
Because you can repeatedly re-challenge a Battle Simulator stage for six hours after spending a Bold Pulse (whether you win or lose), and winning gives good experience, so they can be used for farming experience as well as starting any Battle Simulator Trial sets the AF bar to half full, it can be used as a quick way to refill AF bar when needed by starting a fight and immediately quitting it.
A popular technique is "frog farming": enter Trial to Light the Darkness of Time stage 4 (fighting Cyrus), use a strong earth attacker (such as May with maxed Hammer of Bond or Prismatic Hammer and appropriate grasta) to one-shot each wave, and fill the other five party slots with characters or manifestations that need experience.
|Accepting Sebastia's Challenge||Help with Sebastia's experiment.||x5|
|Light the Darkness of Time Battle Buff||Clear the Trial to Light the Darkness of Time||x50|
|Light the Darkness of Time Battle Buff - Extreme-||Clear the Trial to Light the Darkness of Time - Extreme-||x100|
|Combat Mania of Cascading Quakes||Clear the Trial of Cascading Quakes||x50|
|Combat Mania of Cascading Quakes (Extreme)||Clear the Trial of Cascading Quakes (Extreme)||x100|
|Combat Mania of Perilous Tides||Clear the Trial of Perilous Tides||x50|
|Combat Mania of Perilous Tides (Extreme)||Clear the Trial of Perilous Tides (Extreme)||x100|
|Fix the Time Distortion Battle Buff||Clear the Trial to Fix the Time Distortion||x50|
|Fix the Time Distortion Battle Buff -Extreme-||Clear the Trial to Fix the Time Distortion (Extreme)||x100|
|Combat Mania of Burning Rage||Clear the Trial of Burning Rage||x50|
|Combat Mania of Burning Rage -Extreme-||Clear the Trial of Burning Rage (Extreme)||x100|
|Electric Shadow Mystery Battle Buff||Clear the Trial of the Electric Shadow Mystery||x50|
|Electric Shadow Mystery Battle Buff -Extreme-||Clear the Trial of the Electric Shadow Mystery (Extreme)||x100|
|Sealed Malefics Battle Buff||Clear the Trial of Sealed Malefics||x50|
|Sealed Malefics Battle Buff -Extreme-||Clear the Trial of Sealed Malefics (Extreme)||x100|
|Firestorm Battle Buff||Clear the Trial of the Firestorm||x50|
|Firestorm Battle Buff -Extreme-||Clear the Trial the Firestorm (Extreme)||x100|
|Severed From Fate Battle Buff||Clear the Trial of Those Severed From Fate||x50|
|Severed From Fate Battle Buff -Extreme-||Clear the Trial of Those Severed From Fate (Extreme)||x100|