When Alex puts the tray of food in his grandma's oven, there is a banana in the corner of the tray. When he opens the oven later to take the food out, the banana is gone.
Kane goes to JP and tells him the "Dwarves in level 4 are too similar to the Elves of level 6". When Samantha was giving out levels Kane was assigned levels 1-3 and Berry was the one assigned levels 4-6.
When Alex originally flips the tray of food after removing it from the oven, he spills the food all over the oven door. The camera pans out to him in pain and goes back to the oven and the oven door is spotless.
In the beginning when Alex is getting evicted the man packing in the kitchen is clearly seen placing the coffee pot into a box, and in the next shot he picks the coffee pot up off the counter and puts it into the box again.
During the scene at the house party, when Alex and Samantha are playing a game, the people sitting on the couch behind them change at the end of the scene.
When an X-Box controller is unplugged, like Josh does in the
beginning, it would not allow you to continue playing until the controller is plugged back in.
Grandma and her roommates don't discover 'Antiques Roadshow' until after Alex hooks up the cable box. This implies that it is a cable TV show. In reality the show is broadcast on PBS. Having only 5-6 channels, including PBS, they surely would have already known about the show.
When Alex reaches into the oven, he picks up the hot pan with his fingers and thumbs. In the next scene, when his hands are bandaged, his fingertips aren't bandaged at all. There wouldn't really be any reason to bandage his palms, considering they never touched the hot pan.
Alex's grandma and two friends make tea from his pot stash and get high. THC does not dissolve in water and they would not get high.
When Jeff is challenged by Bobby to play Dance Dance Revolution, the song "Make a Jam!" by U-1 Asami is playing, but since the game is identified as "Ultramix 2", it should be the "Make a Jam! (Dub/House)" remix.
When Alex's grandma first takes him to his room, Alex puts his
bag with the X-Box in it on his bed. The scene then changes and the bag is now on top of the TV and Alex's laptop is on his bed instead. A deleted scene (found on the DVD) takes place between these events, where Alex is looking for the proper A/V inputs on the television and puts the X-Box on top of the TV.
In the scene where Alex introduces his grandma to his game Demonic, you can see the cablebox already on top of the TV. The next scene is when Dante gives him the cablebox
When Jeff is testing the game in his room right before Alex calls to ask if he can do his levels, the action on his computer screen doesn't match up with the "Hi, You're Dead, Byebye" as the figures keep moving and fighting. As he is on the phone and his hands are off the controller, the characters keep moving anyways.
When J.P. claims Alex's game as his own and Alex argues that he created it, Mr Cheezle asks if Alex has another copy of the game. Alex says he doesn't. When a challenge is proposed, J.P. states that Alex probably stole the game and made a copy to learn all the moves. If this happened, Alex would have another copy to prove it was his anyway.
When Dante is talking to Alex about teaching his monkey Tae Kwon Do, the native Dr. says in French, "le singe va lui apprendre judo!" (which means "the monkey will teach him judo!"). Judo and Tae Kwon Do are two completely different martial arts.