Here is the full list of all 26 LOVE 2: kuso achievements.
Complete kuso Level 25 without using any respawn points
Collect 49 YOLO Medals
Get two A's in any category of your results.
Complete kuso in Speedrun Mode with 100% Completion
Complete LOVE+kuso 100% in Speedrun Mode
Complete kuso in under 15 minutes on any difficulty
Complete LOVE+kuso in under 30 minutes
Collect all five Charlie tokens in one playthrough of kuso
In Level Select Mode, beat a level in under 10 seconds.
In Level Select Mode, beat a level without jumping.
Complete kuso while having collected all 8 Extra Lives
Get an A in any category of your results
Fall for two minutes straight.
In Level Select Mode, beat the Credits in under 01:15
In dedication not just to Charlie, but to you.
Complete LOVE
Complete LOVE+kuso
Climb kuso Level 22 without using safety ledges
Perform a smooth maneuver on kuso Level 2
Complete kuso on either Arcade or Hard Mode
Take the upper path on kuso Level 18