To avoid the fights in the Narshe Hills battle first go down the middle of the field to the "safe spot" shown in the pic on the left and wait for the green soldiers to pass you by, then go down and left to the "safe spot" shown in the pic on the right and wait for the brown soldiers to pass you by. To succeed you must be very quick. Put the party that'll be rushing down the field in the left box in the party selection screen before the battle to save some time. You can also avoid Rider, it is only a matter of timing: stand in line with Kefka and wait for the Rider to head right and quickly head down for Kefka. Be sure to "talk" to him when you're in range to engage the battle otherwise you will have to fight the rider on his way back.
Kefka's Tower
Note: The pics on the left are the originals, those on the right have the "background 2" layer removed so you can see what's hidden.
Ribbon
Aegis Shield
Cave to the sealed gate
Here are some screenshots of the locations of the "treasures" buried beneath the "grand stairway" in the cave to the sealed gate. 3 of those 4 treasures are not what the text says they are.
Indeed an Inviz Edge.
It should say Water Edge.
Is actually a Soft, not a Remedy.
Is actually 293 GP, not 2000 GP.
South Figaro - Basement 2
There are 2 sections to the Basement 2 level under the rich man's house, both accessible through the hidden passage behind the bookcase on the second level of the house.
Note: The pics on the left are the originals, those on the right have the "background 2" layer removed so you can see what's hidden.
Hyper Wrist and Running Shoes
Ribbon
Mt. Kolts
Note: Pics on the left are the originals, those on the right have the "background 2" layer removed so you can see what's hidden.
Atlas Armlet
Thamasa
Note: Pics on the left are the originals, those on the right have the "background 2" layer removed so you can see what's hidden.