Here is the full list of all 41 Wunderling DX achievements.
Find a Gold Portal.
Beat Level 6-15 with 100%.
Beat Level 5-B with 100%.
Complete 10 Cow Quests.
Beat the final Level with 100%.
Beat Level 4-C with 100%.
Beat Level 3-9 with 100%.
Get five Cassettes.
Beat Level 2-10 with 100%.
Beat all Green Portal levels in a world.
Collect all the Flowers in an entire World.
Beat Level 1-14 with 100%.
Release the Frog in World 1.
Get through the fourth Boss Battle.
Find all the Treasures in an entire World.
Jump 10 000 times.
Jump through 100 Portals of any color.
Get through the third Boss Battle.
Equip yourself with one Item from each category.
Unlock the factory World.
Find twenty Treasures.
Jump through 50 Portals of any color.
Get through the second Boss Battle.
Unlock the desert World.
Die 100 times.
Collect all Flowers on twenty Levels.
Get one Cassette.
Complete one Cow Quest.
Jump through 20 Portals of any color.
Jump 1000 times.
Beat one Level while having extremely low health.
Get through the first Boss Battle.
Find five Treasures.
Equip yourself with one Item.
Jump through 10 Portals of any color.
Beat one Level by jumping through a Green Portal.
Collect all Flowers on five Levels.
Jump 100 times.
Find one Treasure.
Jump through your first Portal.
Collect all Flowers on one Level for the first time.