Oh wow. I actually owned one of those things back in 2011.
Don't believe it was ever updated past Android 2.3. You can use custom firmware / ROMs to get it up to Android 4.x, but at the end of the day it's a 12 year old smartphone with a single-core processor. You may be able to stick some old APKs on their and emulate NES/SNES/GBA, but any even remotely modern Android game would absolutely melt that thing, if it ran at all.
Don't forget about OpenMW for Morrowind, which is also on Flathub!