You have enemies? Good, that means you stood up for something.
This would only be able to be done via an emulator, but you would be missing out on all the hardware specific things that half the game wouldn't even be there.
Just go get a 2DS if price is an issue, it plays everything (especially Pokemon) perfectly fine and costs 40 bucks (so Pokemon for free basically). Or shovel out the extra money for the 3DS, it's a great console and is definitely worth the buy.