In all honesty, I'm tired of the use of "repetitive" when it's listed as a flaw for a game. I must admit, I'm guilty of using it myself but I'd love for this to be rectified. You see, using "repetitive" is rather vague and counterproductive for getting the message across. For example; Jumping in a platforming game can be seen as repetitive, as well as leveling up in a RPG or moving on-rails in a shoot-em up. They're not flaws, they're game mechanics.
I know repetitive is often used in a review to describe performing the same task over and over again but this is a very recurring theme in just about every game in existence. I'd love for people to be more specific. For example, using tedious instead of repetitive. I can definitely see the flaw in performing the same tasks over and over when they feel like work and therefore aren't fun.
Just my thoughts.
Pixel Art can be fun.