Braid is a 2D platformer, with hand-painted artwork and an interesting time-reverse game mechanic.
Much like most arcade racers now, you can press a button on the controller to reverse time to just before you died, and try again.
The artwork is gorgeous, as is the music. However, I won't be continuing to play.
Braid is a game that turns 15 next month, and it's a little bit janky on newer hardware. That's fine though, because devs are releasing an anniversary edition next month that has an upgraded engine and brought the original artist back to update the artwork for the higher resolutions of modern systems.