In 間違いさがし開発課 (Machigaisa Ga Shi Kaihatsuka), roughly "Mistake Search and Development Division", the players are drawing differences on copies of photos, and the other players are trying to spot the differences.

The players have 2 minutes to draw the differences, and the other players have 3 minutes to spot them. The drawer is rewarded if the other players find the guess between 1 and 3 minutes, or if large additions go unnoticed.

The player with the most points after each has had a chance to draw wins.