This app was mentioned in 11 comments, with an average of 2.91 upvotes
Canabalt, a 2D pixel-art endless running game. The mobile version also has more modes and options than the original Flash version.
So… A variation of Canabalt?
EDIT: I tried it. It's built using Unity, has some 3D effects, but the framerate is atrocious. Go play Canabalt instead.
I love:
Canabalt: https://play.google.com/store/apps/details?id=fishnoodle.canabalt&hl=en
Nimble Quest (has microtrans, but are optional): https://play.google.com/store/apps/details?id=com.nimblebit.nimblequest&hl=en
Canabalt HD https://play.google.com/store/apps/details?id=fishnoodle.canabalt&hl=en
$2.99, looks and feels great though