Arduino tips and advice please?

I am looking on how I would be able to wire a arduino to be able to light up multipe LEDs at once with a single function along with play a sound. With that same function I would like it to play a sound as well. Is it possible to hook up the LEDs and bottons with cords to have the buttons near your fingers tips so its not on the board itself? I would also like to use all one power source. If anyone could help answer this and possibly give me some tips on setting it up, I would be very appreciative. The kit i am looking at is the "Smraza for Arduino UNO Starter Kit with Tutorials compatible with Arduino UNO R3, Mega2560 and NANO" I am trying to do a cosplay and its not for a couple of months but to have the wiring and set up configured i can figure out placement in my gauntlet for the LEDs. Thank you.

What you describe sounds perfectly possible.

Have you looked at and tried the examples in the IDE ? They will show you how to read the state of an input and change the state of an output depending on the input state. This will meet many of your requirements.

What hardware do you have to play a sound ?
What type of sound do you have in mind ?
A beep, a series of tones, an MP3 file ?

No I haven't tried any examples yet but I am just curious right now. I havent bought the kit yet, I intend to do so soon. I guess i will download a program to try and test it out. i was wanting to use a mp3 file I beileive.

i was wanting to use a mp3 file I beileive.

Then you will need some hardware to hold it/them. Perhaps an SD card reader and the appropriate hardware to play it/them.

Search this forum for MP3 and you will find dozens of examples.

Alright. Thank you. I am having difficulties figuring out how to code and understanding it all but I will figure it out soon enough.

I am having difficulties figuring out how to code and understanding it all

Don't jump in and try to do it all at once. Try the examples in the IDE.

Read an input and output a message when the input goes HIGH or LOW
Read an input and change the state of an output to match the input. The LED on pin 13 is good for this.

Read several inputs and print a message indicating which one changed state
Read several inputs and turn on a different LED depending on which input changed state.

Small steps towards your final project