Here is the full list of all 35 Lode Runner Legacy achievements.
Obtained 900 stars.
Clear 150 Classic levels.
Obtained all 300 stars in Classic Mode.
Clear 100 Classic levels.
Clear 50 Classic levels.
Buried 100 enemies.
Clear 50 Puzzle levels.
Obtained all 150 stars in Puzzle Mode.
Clear 50 Adventure levels.
Obtained all 150 stars in Adventure Mode.
Obtained a total of 4,000,000 points.
Clear 30 Puzzle levels.
Clear 100 World levels.
Seized 50 gold by burying enemies.
Clear 50 World levels.
Buried enemies and retrieved 3 gold in a row.
Clear 10 World levels.
Clear a World Level for the first time.
Crossed over the heads of 3 or more active enemies.
Trapped 30 enemies in places where they cannot move.
Clear 10 Puzzle levels.
Clear Puzzle Mode level for the first time.
Clear 30 Adventure levels.
Rode 30 times on the heads of active enemies.
Obtained a total of 1,500,000 points.
Obtained a total of 500,000 points.
Clear Classic Mode level for the first time.
Submitted a self-created item for the first time.
Submitted a self-created character for the first time.
Submitted a self-created map for the first time.
Clear 10 Adventure levels.
Cleared without dropping a single enemy into a hole.
Clear Level 01 of Adventure Mode.
Cleared while still in TimeBonus x3 condition.
Cleared without killing a single enemy.