Here is the full list of all 30 isekizima: Ruins and Tails Journey Playtest achievements.
Clear Tutorial Stage #1.
Clear the Ruins of Wind #1 with the Exploration Rate 50% over.
Clear the Ruins of Wind #2 without killing any monsters.
Defeat the Skeletons-King using Spike traps in Ruins of Winds #2.
Clear the Ruins of Wind #3 without using a Wire action.
Find a route to goal the Ruins of Wind #4 within 60 seconds.
Defeat 1 or more Skeleton-kings that emit Red-flames at the Ruins of Wind #5.
Cross the bridge while stopping the Skeleton-King by using Mushroom-man in Ruins of Wind #5.
Find a route to goal the Ruins of Wind #6 within 60 seconds.
Take a screenshot of the Guardian in Ruins of Wind #7.
View story [■Torino #2].
Break through the gate without using the key at Ruins of Light #1.
Defeat 2 Orc-Heroes in Ruins of Light #4 with No Dead.
Find the point where you can get off the coaster at Ruins of Light #2, And take a screenshot of the mysterious Spirit that appears in the area.
Find the Rolling Stone in the Ruins of Light #5, And take a screenshot of the mysterious Spirit that appears in the area.
Clear the Ruins of Light #3 without the Golem you rode in being knocked down.
Clear the Ruins of Light #6 without the Golem you rode in being knocked down.
Clear the Ruins of Light #3 without riding the Golem once.
Clear the Ruins of Light #6 without riding the Golem once.
View story [■Keema #4].
Take a nap without doing anything.
Found a treasure buried on the beach.
Take a screenshot of the Guardian emits a beam of light, in Ruins of Light #7.
View story [■GLm-78 #2].
Defeat the enemy with the Golem summoned on the minecart in Ruins of Earth #3.
Find a glowing vein in the Level-E mineshaft of Ruins of Earth #2, And take a screenshot of the mysterious Spirit that appears in the area.
Find a route to goal the Ruins of Earth #4 within 60 seconds.
Boasts over 10 Scrubbing Brushs.
Dodge 200 consecutive lightning strikes in Ruins of Earth #5.
View story [■Professor #2].