"It is pure and simple disrespectful to sit and play Pokemon during such a serious hearing," Halvar Ronneberg, group leader for the Progress Party in Andoy, told state broadcaster NRK.
Ronnenberg said Grande's Pokemon hunting "also shows a lack of respect for voters and those who are here in the Parliament today on an important mission."
Grande said she stopped playing the game after complaints from hearing participants, but she defended herself from accusations that her actions were disrespectful.
"Some of us have heads that listen better when we can do something brain-dead on the side," Grande told VG. "We're not all alike. More sensational things came up during the hearing than this."
Norwegian Prime Minister Erna Solberg is famously a fan of Pokemon Go, telling reporters last week that she had reached level 14 in the game.