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