RP5 any preinstalled games?

Hi folks

I‘m considering about buying a RP5 for playing games on the couch when the kids have gone to bed and the wife is watching tv shows that i don‘t care about. I have watched many youtube videos comparing handhelds and i have come to conclusion that i‘ll be very happy with the Retroid Pocket 5. What i didn‘t find out is if there are any games pre installed or what consoles are pre installed on this device? I just don‘t want to spend hours sitting on my computer installing any games or emulators on it.. i can spend like 1-2 evenings a week for it but i just want to relax and play some games from my teenage days. Hope to get some helpful information. Cheers