Here is the full list of all 46 SaGa Frontier Remastered achievements.
Defeated the ultimate version of the boss battle chain.
Completed the story lines of all eight protagonists.
Viewed Fuse's ending.
Had all recruitable characters join your party.
Had Red, Blue, Emilia, Riki, T260, Asellus, Lute, and Fuse join your party.
Had Ren, Doll, Rabbit, Silence, and Cotton join your party.
Defeated the masked fiend in Dev 2.
Viewed Red's ending.
Visited all regions.
Had Leonard, ZEKE, BJ&K, Engineer Car, pzkwN, T260, and Rabbit join your party.
Viewed Asellus's ending.
Had Zozma, White Rose, Ildon, Rei, Mesarthim, Time Lord, Nusakan, and Silence join your party.
Had Thunder, Suzaku, Slime, Kylin, Red Turnip, Sei, Riki, and Cotton join your party.
Viewed Emilia's ending.
Viewed Blue or Rouge's ending.
Defeated Abyssbat.
Had Roufas, Annie, and Liza join your party.
Viewed T260G's ending.
Switched to all mech chassis types.
Purchased all types of items sold at shops.
Viewed Lute's ending.
Be possessed by Living Sword or Living Musket.
Received the gift of Rune Magic.
Purchased all items that can be purchased in exchange for LP.
Had Capt. Hamilton join your party.
Had Rouge join your party.
Viewed Riki's ending.
Transformed into a monster and became a black dragon.
Transformed into a monster and became Mariche.
Transformed into a monster and became a Dullahan.
Defeated Virgil in two turns or fewer.
Received the gift of Arcane Magic.
Performed a five-technique combo for the first time.
Used spells 100 times.
Received the gift of Shadow Magic.
Received the gift of Light Magic.
Used techniques 100 times.
Infused a monster into a piece of equipment for the first time.
Mastered a technique for the first time.
Mastered a spell for the first time.
Had at least 100,000 credits.
Sold gold for a certain amount of credits or more.
Had Fei-on and Mei-ling join your party.
Glimmered a technique for the first time.
Swallowed by Tanzer for the first time.
Transformed into a monster for the first time.