Junzen Shotokan karate

This is a visually impressive kata with its rapid combinations, tension moves and a jump in the finishing moves.  The signature technique is the 180 degree jump which requires a strong knee tuck jump and good landing technique in kokutsu-dachi to protect the joints.

Note that all the fumikomi (stamping kicks) are performed with a mikazuki-geri (crescent kick).  Prior to the final moves of the kata, this is combined with an otoshi-uchi (dropping hammer-fist) to the head landing in kiba-dachi.

There are many variations in the detail of this kata in other styles such as the preparation of shuto-uchi moving in kiba-dachi, which side the kosa-uke is executed on and slow-fast moves differing.  Pay close attention to these particular moves.

This kata has a few technical points that require regular practice to maintain proficiency - namely the hand positions and transitions for handling a bo staff in the bunkai (application).

Sometimes mistakenly considered a kata more suited to female karate-ka.  This is a very asymmetric kata performed in quite a compact enbusen (line of movement).  As the kata name may hint at, there are a number of unusual hand techniques as well as a unique ending.

All Tekki kata are performed at a relatively fast pace.  Check the instruction set for detail on the exact hand positions for the techniques.

The ippon-ken (middle fist knuckle strike) under tension is as used in Chinte instead of using the index finger you may see in other styles.

Ensure the final move drawing back into neko-ashi-dachi (cat stance) is executed at the same time as slowing pushing out the Teisho Awase Gedan Uke (low double hand heel block).

This is the biggest of the 'big 4' kata (the other 3 being Bassai Dai, Enpi and Jion) and is the 'parent' kata for all the Heian kata and contains many of their techniques.  Hence your "Heian" must be strong to be able to perform Kanku Dai well.