So slim said most of what I have to say. The softlocks were definitely annoying.
Seems a bit odd that the first cutscene doesn't use the name you chose and uses ??? instead (unless that is your chosen name).
There is no warning that you can't return to previous maps. Would be nice to have a warning when it comes to points of no return.
Dad goes missing/invisible a lot during cutscenes.
The 100 TP skills are basically useless. There is no TP reserve, so there is almost never a reason to use them because the battle is done by then.
During the exit of the first caves right before repairing the bridge, you can see a phantom enemy that disappears a few seconds after you re-enter.
When you enter the city, you can mess up the children's pathing and set off an event saying that you shouldn't be leaving town.
The one mimic chest in the last area can be interacted repeatedly. You can also talk to it to start the fight (gives no rewards), then fight it again by talking to the chest next to it. Afterwards, the mimic stays shut and you can keep interacting with it for potions. At this point the game is done and you can't progress.
During the first pilgrimage cave after you obtain Gale (do a recovery for Gale after he joins or start him off at the starting level via the character database instead), if you immediately turn around, you can walk off the map and grab edge chests.
One of the tiles in the last area is a single directional passthrough. This means you can't return to previous sections of the map.