Okay the battle with Zoma took at around 15ish turns. Zoma was pretty much alternating between whitefire and bigbang the entire fight, though he'd occasionally cast one 2 or 3 times in a row. I had to Alternate charge/cautious plans on my Slime and Picky to get them to defend some of the time and keep the party alive. Overall a good fight, and the extra max hp from being +13 instead of +8 on my monsters made all the difference. I'll update this post later with news of further gates once i try them. There are 3 gates left to do, not counting the one you need an AR code to access. The gates of demolition, Sleep, and extinction are left, plus some others i haven't looked into yet.
For example the 2nd gate at the bazaar which requires a monster with a summon skill hasn't been unlocked, or the gate that requires you to find out the little girl's name then show the grandfather a goldslime hasn't been unlocked either. I also need to unlock the gate under the right statue at the arena as well, though I "think" i know which goopi i need to beat for that one. Honestly i probably won't bother with the one that requires a goldslime. I will try to catch an extra whipbird though and then cheat its stats high enough to learn tatsucall, that should suffice to unlock the second gate in the bazaar.
So basically next time i play here in a bit, i'll try to beat a goopi at rock paper scissors and catch an extra whipbird to unlock that 2nd bazaar gate.
Just finished fighting Sidoh in the Demolition gate. Compared to Zoma the fight was a joke, very easy took around maybe 10 turns. Sidoh spent most of its turns alternating whitefire and hellblast, though he also threw in the occasional physical attack. Was able to leave my Slime and Picky on charge the entire time, was easy for my Slimenite to keep up with the healing with healall.
The gate of extinction has been cleared. I recruited a grendal, ogre, and goathorn while going through the gate(didn't need any of the others). The fight was PIzzaro was a complete joke. He alternated white fire and hellblast some of the time while throwing in some physical attacks and quadhits. The quadhits was so pitifully weak as to do 1 dmg per hit to any of my monsters even when they weren't defending. The battle took about 19 turns in total because my Slime seemed to enjoy casting firebolt a bit more than physically attacking for some odd reason(wasn't an issue with other bosses and he's still vain personality).
I'll look into doing the gate of sleep next most likely. Need to recruit about 4 monsters from that gate.