No you can use the buttons.
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No, but if you need a bigger screen, you can download a ROM after owning the game.Warning!!!: it's illegal if you do not own the game already.
It depends. If the touch screen works, but isn't clicking where you want it to, then you need to calibrate it. You can do this on the Settings. If the touchscreen is not responding at all, then sorry, you need a new Nintendo DS.
Yes it will I do have a touch and a normal but all you need is good graphics and/or a gaming card
To check a Pokemon's friendship status (how much it likes you) you need to get pokétch app # 6. when you have this app open on your bottom screen, press and hold the touch screen where an icon of one of your Pokemon is. when you touch its icon, you get one of three reactions: nothing happens, small hearts appear, or big hearts appear. Nothing means the Pokemon is unhappy with you and doesn't like you yet. Small hearts mean the Pokemon somewhat likes you. Big hearts means it really likes you.As for evolving by happiness, you usually need it to have big hearts. I have only had one instance in which my Pokemon happiness evolved with small hearts.
sorry can't you need bottom screen