Sky Burger is a casual burger-building arcade game with endearing visuals, surprisingly fun controls, but fairly repetitive gameplay.
Your job is to build burgers to order, one at at time, by positioning a bottom bun (and a teetering, ever-growing tower of ingredients) under a steady, random cascade of pickles, patties, tomatoes, onions, and the like. Burger ingredients fall from the top of the screen, and you can get your proto-burger under them by using either touch or tilt controls: touching and dragging the bun, or tilting left and right. Both have their advantages (tilt keeps your fingers from ever obscuring the screen, but touch can be more accurate), and both can lead to comic upsets. The difficulty ramps up as the burgers get taller, hence tottering as you struggle to move them quickly left and right to intercept ingredients. You get paid for each specific burger (from the pickles and lettuce of the "Green Machine" to more mysterious burgers like the "Bloop" and "Awfulburger"), and your tip is based on how close you followed that particular order (i.e., without adding in any extra ingredients). If you finish a burger with a top bun before stacking on all the required ingredients, you get a big burger "FAIL" and have to go back to shorter burgers.
If you stick with Sky Burger past the earlier, more modest burgers, the game does get more challenging and fun--although it never deviates from the core burger-building mechanic. As with similar casual games, the real appeal of Sky Burger comes in cumulative, pick-up-and-play sessions, as you bank more money, move up the corporate ladder (to "Burgerista" and beyond), and earn achievements (like "Year of the Burger," after completing 365 burgers). Sky Burger does a great job of supporting this, with multiple save slots, automatic online saves, leaderboards, a constant readout on your stats (from pay rate to average tip to best burger ever), and easy controls for Tweeting your latest creation.
If you like casual arcade games and can get it for free or cheap, Sky Burger can be a lot of fun--but if you want a more complex or challenging game, look elsewhere.