The reactions people have to art games versus "regular" games is a lot like the reactions people have to art cinema versus popcorn movies. On the one side, people who like it will praise it for being challenging, satirical, intellectual or evocative. On the other side, many people slam art games for being cliched, melodramatic, pretentious, and covering up for a lack of game-making skill. So it's a "love it or hate it" thing, and the dichotomy doesn't get much more stark than in the works of Jason Nelson, probably best known for game, game, game and again game. Probably because while many art games can at least be enjoyed aesthetically, his works are aggressively ugly.
His latest piece, Scrape Scraperteeth, was sponsored by the San Francisco Gallery of Modern Art. If you're the kind of person who wouldn't be caught dead going to visit a museum of modern art, or who says things like "my kid could do this" about its contents, you're definitely going to fall on the wrong side of this game's reaction dichotomy and you might as well scroll past this review now. The rest of you should play it to see what you think.
Scrape Scraperteeth actually has you start out the game by reading and acknowledging a satirical "warning", pointing out its flaws before the critics can do so: it's easy (you can't die or fail), it's ugly (well... just look at the screencap), it's strange. Once you acknowledge the warning, the rest of the game plays by the same platforming mechanics you know and love: [arrow] keys to move, and [spacebar] to jump.
Eventually, unless you give up, you will get to the end. If you try to apply usual platform game logic and get there as soon as possible, the game's going to be over very fast and you'll be leaving a scathing comment here about the muddy movement or poor level design. Platforming enjoyment is not what you're signing up for when you play this game. Slow down and take the time to watch all that happens as you move around the levels, to read the text, and to figure out the subtext. On the other hand, while the game goes ahead and tells you on the menu screen that this game is "about the real estate crash", it also says "stop trying to 'get it'". So maybe you should just let the cognitive dissonance wash over you like metal on metal. Not for everyone, but it might be for you.