Elasto Mania II
Elasto Mania II has a free shareware demo version and a full version. Both versions run under Windows. To try out the first 16 stages of the full version, download its free shareware demo version . To get the full version with its 16 additional levels and the full level editor, you have to register for only US $9.95 (tax included).
Here you can see a few replays of the internal levels. These are videos of the iOS version of the game, but the internal levels are the same in Windows version. Though in the Windows version the biker is slightly smaller relative to the picture size.