The Samsung E250 (2009) cannot install games via USB. Period. This isn't a limitation you can work around—it's fundamental to the device's architecture.
These methods are unreliable, carrier-dependent, and limited to primitive games (Snake clones, basic puzzles).
Any Android phone ($50+) or iPhone (used, $100+) gives you Google Play/App Store access—millions of games, modern hardware, actual storage. The E250 is a 2009 feature phone. It's not a gaming device. Let it go.