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