Is it possible to get a number of pre-set hashtags per minute from twitter?

Hi I wanna make a simple game where the game fetches the number of hashtags being tweeted and then converts that data into something useful in game, for example how fast a rocket should fly et cetera.

Can anyone point me in direction or give me a link to a tutorial where I can learn how to do this using twitter?

I'm a games tech university student so I am intermediate/advanced so anything will do :D