Press square button until your mod looks back. Now you have successly layed down a mine.
As with front weapons, mines also have 3 levels, the higher the level, the more durable and the bigger area of detonation for the mine.
I don't agree with the rear mirror thing. Karting games, because of their "fun factor" or "casual" aspect, tend to be more or less impaired against the leader of the race. I don't see why it shouldn't be this way in MNR, where the leader has even more ways to defend and attack than in other games. On the other hand, because the game is not first person view "in-kart", the mirror wouldn't integrate well. That's my opinion of course. Triangle button makes it's job perfectly. You add the fun factor of when you can press triangle without crashing against the next wall.
