Here is the full list of all 11 入替人-ReplaceR- achievements.
Clear within 20 minutes.
No Continue Clear.
When you get the barrier.
When you have completed the game once.
When the seal gimmick is removed.
The one who activated the four types of keys.
When you clear the stage to change the position.
When you clear a stage that bounces.
When you complete a stage that swaps.
When you clear a stage with a parabola.
When you get the ability to switch.