Chuck's Boots are knee-high boots, and bear the same design as his shoes in Dead Rising 2: Case Zero. However, in Case Zero, they are ankle-high.
Many of the human enemies Chuck faces are able to take more than one gun shot to the face.
During a couple of the mission after a zombie has been killed, sometimes you will see that the zombie is not resting on the ground, but in air.
When Tyrone King is firing a pistol at Chuck on the underground train, the pistol can be seen firing multiple times, but his finger does not pull the trigger once.
During the concert in Rock Heroes (one of the game's missions), music can be heard as the band plays. There is an obvious drum beat to the song, despite the fact the band lacks a drummer.
Fortune City was meant to replace Las Vegas, a city that gained over a million visitors per day. Fortune City is obviously not big enough to even handle half of that amount.