Went ahead and just swapped that sound for you in the Predacons theme.
Turned down volume of cursor in both themes. Launch is now "Yessssss" By megatron.
Enjoy!
The Laser sound btw, I can turn it down in both themes if you want but I kinda think its cool its actually the tail end of the transformer sfx where they transform
Will add megatron to the purple theme tonight
honestly it was so hard to find all these samples to begin with. If you would like, feel free to find me some samples and I will gladly change them for you.
(I never watched the show so any help with more precise sounds needed)