How about making the act 2 & 3 open world too? It would ruin the mana thing though but I was thinking about how in the world can we awaken any of the 4 star unique monsters that are only available on act 1? Or how about just making an open world map and have people hunt for unique 4 stars in that map alone? This game was advertised as a Pokémon-like game so I was just frustrated by the fact that after act 1, there’s no other way of catching monsters or obtaining them specially the unique ones except thru gatcha, and 4 stars aren’t even there.
In the end, the players would just heavily rely on soul stones to get everything they need and it’s not healthy.