I'm willing to try to start my speedrunning career with this game (cause i love it since child).

Can I use mame?, Is livesplit a must, or can i do it w/o it and then measure the length at the end?

Hi!

I have used mame as the emulator for my own run. About livesplit, I actually do manual splitting while playing but I guess it is fine if you add it after the run.

Yes, I also use Mame for speedrun this game :)

You don't necesarilly use LiveSplit to show your time, you can use another program if you wish, but you must need to show a timer on the screen.

Btw, I see you're from Murcia, we have a speedrun community for speedrunners from Spain. You can join us if you wish :) https://discord.gg/JZEKmjU