After Josh puts down the spray bottle when Crazy Steve was spraying with it, it continually alternates from standing up to lying its side between shots.
Movies listed on the Premiere Theater marquee: "Cookie & Mischief," "Hungry Girl," "Bacon and Legs," "Blue Legume," "Pete & Sam's" and "Kissed Her Sister." Inside the Premiere, posters for "Blue Legume" and "Kissed Her Sister" hang as "now playing," but "Hungry Girl" and "Bacon and Legs" hang as "coming soon." Not on the marquee but "currently playing:" "Beauty and the Yeast" and (mentioned by Drake) "She's the Dude." Drake also mentions "Just My Truck" as "currently playing," but it's not on the marquee and no poster is seen inside.
At the beginning of the episode when Josh says he is trying to study for the test, he says he has come up with a great way to memorize the atomic weight of the elements; however, the Periodic Table lists the atomic weights of the elements, and all upper-class chemistry tests would provide a Periodic Table during an exam. Ergo, Josh is wasting his time memorizing the atomic weights as he could simply look at a Periodic Table provided during the test.
When Drake tries to cheer up Josh, you can see the studio light reflections in the sit-and-bounce.
A string can be seen carrying the ping-pong ball while Drake and Josh play the game.