¡Hola!
I noticed one bug, though it's not related to Linux I'm sure:
Entering this house:
And then leaving the door below here:
Puts me here, right next to the gate:

Also, I noticed there are many Horned Snails and quite a lot of Peepers, but very few Chestnuts in the first area. The HS and Peeper are immune to Jordi's attacks at Lv. 1 and only the Chestnuts are fightable but there are very few of them. It does seem I can Escape any fight, but it took me many escape attempts to defeat 5 Chestnuts and level up. After that the first three enemies and the Squirrels are easy.
Also, I like the Dragon Quest way of finding a chest in the castle's town 😉