Can more than 6 play with expansions?

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As the title says, we are a group of 7 and we want to be able to play all together, we have "Super Munchkin" and "Munchkin Cthulhu".

Can we do that? Also, can you bring powers from "Super Munchkin" from your hand to play during combat?

Thanks in Advance and sorry if my questions are too stupid or if I misspelled something Im not native english speaker.