The following is the requirements for testing for 4th Gup (Blue Belt),  including everything from 9th, 8th, 7th, 6th and 5th Gup test:

Blocks:

Kicks:   Spinning Crescent Kick, Combination Kicks

Strikes:

Stances:

Form:  Yul Kok

One Steps:  10  plus 5 takedowns

Self Defense : Basic Escapes

Sparring.