The domino effect all started on Planet Frieza, A new king had just been crowned and a majority of the Changelings were not happy about it and were starting to rebel. Though each force that rose up to challenge his power were crushed before they even entered the capital city. The new king of the Changelings had grown power hungry and as such he sent out two of his best generals to start the conquering of the galaxy.
Planet Vegeta had been attacked by one of the Changeling's two invasion forces but the Saiyan inhabitants of Planet Vegeta proved too much for them to handle causing the Changeling's men to retreat. The king of the Changelings was so impressed by the Saiyan show of force he left his castle and went to Planet Vegeta himself where he struck up a deal with the King of the Saiyan Race where the Saiyans will be added to the changeling military and shall be used as advanced scouts and other various mercenary jobs.
One of these such scouts was sent to earth to map out the terrain and get an average reading of it's inhabitants while wait for further orders. While he was flying over the northern mountains The Guardian killed the Saiyan thinking that he was there for the dragonballs. While he was standing over the body he spoke out loud about the dragonballs and the power that they hold.
So come join us and play as your favorite race and collect the dragon balls, though should you find that you don't want to be a member of the races that we already have then you can make your own.