Laxius Power I-III were made a lonnnnnng time ago so technically they're a bit rough on the edges

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Laxius Power 1 was never fully finished. There are some maps which tells you - you will play them in version 1.2, which doesn't exist. The game is full of typos, cliches, but there was something magical about it.
Laxius Power 2 was a big improvement overall. I don't remember anymajor bugs. You can import saves from LP 1 and improt save to LP3.
Laxius Power 3 is in my mind the best Indinera game in some aspects - the world is major one, the main quest have parts in which you play with separate parties, and i really love the slayer mechanics. The biggest problem in LP3 are that it have some bugs - the quest book can freeze you game, another menu can too. Another one is that some side maps are locked behind the Slayers mechanic and requires grind. I am pretty sure that either in Laxius Power 3 in the first big area - a swamp - there is a sword which sometimes you can pull it, another time you can. Neither Indi remembered how to do it properly back in th time, neither the walkthrough.
Laxius Force 1 still have a lot of grind if you want to get the most of it. When you finished your first playthrough you can check my save ( i uploaded it and create a thread in the forum ) in which you can see what you have missed.