Space Invaders is the beautiful slabby arete on the very left side of Black Wall. A very balancy begining leads to beautiful arete climbing with crimps, jugs, and flakes. The crux is half way up where you make a comiting move from crimps to this minature roof. Spectacular.
This route is located on the very far left of black wall. From the base of rats tooth you can see a beautiful dihedral to the left. just to the right of the dihedral is a small gully. Space Invaders starts right above the gully.
This route is very well protected and is perfect for a beginer who is up for the grade. You need 12 draws and a sling. There are rapel chains and the top.