Access Denied

You can earn this achievement as early as Level 15, which is the first Circuit type level, simple connect the circuit to the two different colors, in level 15's case its blue and brown, then make the two colors collide, which will turn the color of the whole circuit to Red, Which pops the achievement.

EDIT: Here's a photo to further help with the solution



Credit goes to Ratalaika Games for the whole game guide on psnprofiles, you can find it here:
https://psnprofiles.com/guide/8319-access-denied-trophy-guid...