The inclusion of legitimate reasons to rate a game lower weakens an otherwise excellent point. Voted 5/5 on general principle, but the game really only deserves 4/5.
Yeah, replacing the double-tap with C was a bad move. It makes it too easy to accidentally rocket boost into an enemy. I'd be able to get through the game with one death at most if it weren't for that.
Like all the X Differences games, immensely aesthetically pleasing, with nice, calming music. As opposed to 6 Differences this installation required far less pixel hunting, owing, I suppose, to a general increase in the size of the differences. It's rather more difficult to spot differences in photographs than illustration, courtesy of all the extra noise, and it's nice that the maker of the game learned from past mistakes.
An idea that would be interesting were the implementation not idiotic and the puzzles requiring a patently ridiculous number of additional hardware or software to solve.