Games? Shoot the crap out of each other, mostly.
What’s your budget? This:
http://www.argos.co.uk/static/Product/partNumber/9122051.htm#pdpPromotions
Is absolutely the best out of the box. £30 for a pair so not that cheap but ace.
This:
http://www.amazon.co.uk/NERF-N-Strike-Elite-CycloneShock-Blaster/dp/B00PAZ627U/ref=sr_1_1?ie=UTF8&qid=1453494083&sr=8-1&keywords=nerf+mega
Is probably the best value, and fires bigger darts the size of shotgun shells that whistle as they fly past your ear. It’s also a massive cool revolver. But the darts are more expensive and more delicate.
And this
http://www.argos.co.uk/static/Product/partNumber/9115769.htm
Is the cheap option but only comes with 2 darts. Tiny, this one.
There’s loads of others, they all perform pretty comparably though. Unless you, frinstance, get one of the electric ones and replace the motors and battery with parts from raio controlled helicopters, but you know how it’s all fun and games til someone loses an eye? This is what they meant.
The darts are the thing, you get just enough to fill the gun and you’ll lose or step on them really quickly. Nerf guns are basically foam crack, the gun’s not expensive but the darts cost a fortune- 25p a go or thereabouts for the small ones, 50p for the bigger ones. In the states, nerf bullets are more expensive than real bullets.
So if you can wait, this is cheap for the big ones:
http://www.amazon.co.uk/Refill-N-strike-Elite-Blaster-9-5x2cm/dp/B014Y9S3II/ref=sr_1_8?ie=UTF8&qid=1453494155&sr=8-8&keywords=nerf+mega
And this is the best source for the smaller calibre ones
http://stores.ebay.co.uk/beautifulwoman2012/category5039768011-/_i.html?_fsub=5039768011&_sid=1107588881&_trksid=p4634.c0.m322
These are both quality copies, but take time to arrive from abroad.