if you would prefer your kid be outside playing than playing video games. challenge ‘em to a game that you like and whoever wins that match gets to watch the loser do pushups or situps or whatever exercise activity the both of you could do. Granted, some kids may stare at you rather oddly at first but challenge ‘em, they’ll probably give in thinking they’re gonna make you sweat a lot. Either way, if you manage to win - they’ve got to  sweat  and if they do, you’re doing something good for you too!