There are 3 courses for JLPT N5 available at Memrise. This goes over the differences between each one. Here are the links to the individual courses:
This particular course: http://www.memrise.com/course/554/jlpt-n5-vocab/
The readings course: http://www.memrise.com/course/122927/jlpt-n5-readings/
And the grammar course: http://www.memrise.com/course/130554/jlpt-n5-grammar-stage-1/