I am thinking of bringing my univrsity class to the museum. Do I need to make a reservation to do this? The class is fairly small, with about 20 students.

Twenty students should be fine. No reservations are required. It's not a museum in the sense of the word. More like a retro arcade. Popcorn is cheap and awesome.

The setup of the place is very similar to that of an arcade, so you won't have to check in at any point. That being said, it will likely get very crowded with twenty people in one group because the aisles aren't that big.

Shouldn't be an issue sounds like a great plan!!

Might get a little over crowded on the weekend but still doable

I think it be more than fine with 20 kids. I wouldn't be worried. It's a large space