I'm on Observation Duty 2 builds off of the first game in many aspects, and features some quality of life features absent in future games moving forward. For one, the game has color, which provides the opportunity for unique and subtle changes. However, the first map is far too big, with 9 cameras, while the second map is in absurdly low quality, but only features 6 cameras. The game is good, but the second level was taxing on my eyes.
Two maps come with the second game. One is a big improvement over the first game, and the other is WAY worse. The house of the past is styled to look like a low poly PS1 game along with being really cluttered and uninteresting. It makes learning and completing the map a real chore. I don't love the addition of the object shrinkage and growth anomalies, but I'm glad they got rid of "Other". The secret was pretty disappointing. I wish there wasn't an achievement locked behind a rare random event.