1. You are spinning towards them, rotating forwards not a summersault.
2. No, the jutsu is meant for you to use just feet. "think street fighter move from ryu, ken, or akuma"
3.Think Horang or paul. You are doing a continuous kick, first kick as you jump, using momentum you kick against lifting yourself upwards again to land the kick in mid air. Soon as you land the 2nd kick, you have arms to grab. Grab them and jump on the shoulders. You don't kick them 23894792834 meters above the air........... Last part of your question, depends on description.
Since you asked, lets do homework. Try to do what you wanted to do.