Improved gameplay
The gameplay in this version of 90° is much more intuitive, since you turn the wrench yourself now, which feels very natural and responsive.
Doing so, you are able to rotate it up to 270 degrees in just one turn, so it’s possible to test several variations looking for matches, before actually releasing the wrench and committing the turn.
You don’t have to do the full rotation, just do the most of it and let the wrench snap to the exact angle automatically – the screenshot gives you an idea.