SQH, though only the Avalanche mode is randomly generated.. There making another Randomly Generated mode called Eruption or something.. Though most people probably know that..
Super Quick Hook Cubed Rally Racer Canabalt Doodle Jump Stick Bound Fox vs Duck Fruit Ninja Finger Sling Up There Boost 3D Quest of Knight's Onrush Wheeler's Treasure Scoops Minisquadron + Special Edition Zombieville USA Spider: Hornet Smash Dizzypad
That list is amazing Will! - Thanks. Although I am looking for a - Puzzle - Side-Scrolling - Adventure type game that never ends. hehe.
You could try LandFormer. Well, I guess it's not endless, but you can make your own levels/solve friend's levels. It is a pretty nifty puzzle game that came out today.
Helsing's Fire is a new puzzle game that generates random levels. Space Invaders Infinity Gene can generate levels based on your music tracks. And of course all the of the great Roguelikes. Rogue Touch is my personal favorite.
The King of Never-Ending Games: PapiJump The Newer King of Never-Ending Games: Doodle Jump The Heroic Prince of Never-Ending Games: Canabalt The Princess of Never-Ending Games: Boost 3d The Stupid Guy Who Describes Games by Royalty Ranks: Me