In the 2nd room, as the 4 slimes appear, run in a straight line in to the wall where a door should be, you will walk through the wall in to the hidden room with the laser switch
What you could do, if you'd rather get Twins (which is a free S/D) just make a character with Viridia, Redria, Skyly, Purplenum or Yellowboze and level it from 49-50 there, it will give you Ila which will give you Twins.
Just wanted to add to this, if you put RES in your title most people know not to join them as it saves putting a password but you know that the party has a set team.
Hello, I've just come back from a year's absence and I find my character vault to be... weird. I was definitely 100+ on my main character and 60+ on my alt but I come back to them being 41 and 6 respectively as well as missing a lot of items.
Not entirely sure what's happened but my login is...