basic scripting questions

Hi, I am new to unity. I have found some videos online which have helped me greatly, but I still have a few questions.

  1. I have a script to fire “bullets”, after they are fired how to i get rid of them?

2.The “bullets” I am firing are cubes, I know how to change what is being fired, but is there a script for changing the rotation of it before it is fired?

3.When I have an object jump, after a certain distance, it falls like it should but then when it hits the floor it bounces off at an angle. How would i fix this?

http://www.rebelplanetcreations.com/downloads/Other/Tutorials/HowToMakeAGameInUnity3D.pdf

this tutorial can answer questions 1 and 2 and probably help you a decent amount in other places. Don’t have an answer to Q3 as I’m new myself and haven’t dabbled in jumping.

thanks for the help this was really useful