I really liked the bonus levels. 1 was a bit annoying, 2 was very chill. But now I have unlocked the third level and I just hate it and I cant change it unless I do an early UA. It would be great to let us choose between the unlocked levels - I mean, easier levels means less rewards. So its up to us if we want the lootpenalty (or however you want to call it) or suffer for the loot.
#Let us choose the bonus level
onyx fulcrum
alpine cedar
do you have dark divinities
if so, look at "Regret".
if not... well, unlock them
(no there's no way to go all the way back to 1 without Ultra Ascending)
iron flare
third one is so easy after like 3 tries you should be able to do it in autopilot
dark aspen
that goes for bs1 and bs2