Here is the full list of all 31 Lifeslide achievements.
Pass "Loving" without collecting any particles
Clear the entire game without dying
Play with all planes
Unlock all planes
Reach maximum speed
Maximum improvements
Regain time after it runs out quickly, three times in a row
Find the hidden spot in the "Revealing"
Find the hidden spot in "Loving"
Find the hidden spot in "Creating"
Find the hidden spot in "Understanding"
Travel 10,000 in one run units on Zen
Use Knowledge 30 times
Pass "Fighting" with the third plane
Find the hidden spot in "Fighting"
Find the hidden spot in "Healing"
Complete the game
Reach the final realm
Find the hidden spot in "Giving"
Reach Maturity
Reach Adulthood
Collect 10,000 in total
Find the hidden spot in "Awakening"
Reach the realm of healing and dreams
Reach the realm of growing up
Whilst holding a power-up, collect a different power-up
Reach the realm of imagination
Regain time after it runs out
Make your first improvement
Use three Will power-ups in a quick succession
Brought to life