most games cannot. especially hentai games and adult games. most are swf or exe formats , google convinced cellphone companies to remove swf support, period, end of story. unless you have an old phone no swf for you. as for exe, you'd either need to decompile it and recompile it for your phone type and find some miracle that allows you to run it without downloading it from your phone vendor's app store, (because phone vendors will block and refuse to publish most adult content), Or, you'll need a windows emulator for your phone good enough to handle random GL games, which likely isn't going to work perfectly, if you can find it at all as your phone maker probably disallows things like that on the app store as well.. the only games you can play on phones are browser games built for webGL or html5+javascript.
get a computer, it's not safe to browse the net on a phone anyways, as your phone maker spies on everything you do, which means all it takes is one bad employee and they can steal your logins. also never do money or purchases over a phone. they are loaded with manufacturer spyware.
unless you're going to make your own phone from a raspberry pi and a 5G chipset.
