Here is the full list of all 19 LOVE achievements.
You only live 999 times.
Get an A++ Rank
Placed 250 Respawn Points
Get a B Rank or Better
Get an A Rank or Better
Beat Level 8 without meeting an untimely demise.
Stay clean while making your way through Level 6
Take the most efficient path through Level 2 without dying
Find the secret hidden in the depths of the Slow Tube
Submitted Speedrun Score to the Steam Leaderboards
Beat the game in Speedrun Mode in under 12 Minutes
Took the lower path on Level 10.
Successfully take the Level 3 Shortcut without dying
Beat the game on Normal or Better
Get a C Rank or Better
Took the higher path on Level 10.
Climbed a Machine in India
Bounce 60 Times
You only live once.