[makapuf]

Well you can still download the rom and the machine is fully emulated, forever. Not sure there is a way to play geometry wars in any fashion. Besides batteries can be replaced and even then you'll miss your high scores but you'll still be able to play.

[jachee]

I've still got Geometry Wars on my 32-bit iPad. It's my go-to airplane game—if there's a 120v outlet to plug into.

No multiplayer, though.

[makapuf]

Could you reinstall it if it was uninstalled?(real question)

[jachee]

I don't think so. It's part of why I haven't.