Norman's Great Illusion
13 Achievements
0-2h
PSVITA
This is not rocket science
You failed work minigame
94.2%
How to unlock the This is not rocket science achievement in Norman's Great Illusion - Definitive Guide
Ryukori
The work mini game is the one where you solve math problems. You are allowed 5 mistakes before you fail the mini game for good so get the incorrect answer 5 times in a row, then this trophy will unlock. Alternatively, you can just keep pressing the "Enter" button until you fail the mini game. This will also unlock Very expensive lesson 
at the end of the day.
at the end of the day.
Ryukori
The work mini game is the one where you solve math problems. You are allowed 5 mistakes before you fail the mini game for good so get the incorrect answer 5 times in a row, then this trophy will unlock. Alternatively, you can just keep pressing the "Enter" button until you fail the mini game. This will also unlock Very expensive lesson at the end of the day.
at the end of the day.
UntilTammaroYT
This requires you to fail the math minigame by answering more than 5 math questions incorrectly.
See “Merry Christmas” for a full game walkthrough.