Are Mini-Games ok to use in Story-lIne Dialog Games

Are Mini-Games ok to use in Story-lIne Dialog Games

I have about 4 main mini games so far in my rpg sci fi combat story line Dialog game. 

Mini Game 1. 4,000 Rogue Droids to get rid of on the space station

Mini Game 2: 1 Million Rats down in the Sewer, (must have high health levels to survive this mini game)

Mini Game 3: Underhounds Protections Gang 15 Criminal thugs to have to get through.  (Firefight  mini game)

Mini Game 4: Bears in the Forest.  Go the wrong way and Bears threaten to puncture the tyres of your jeep.

How many of these mini games should we put in a story line driven game?   They don't necesarily detract from the storyline because I included Diaglog also in the mini games while you are busy blasting through all the waves.  But for the Mini Games themselves, I might just have audio dialog instead of text dialog. so you can do combat and speak at the same time.