The difficulties of adapting platform gameplay to three dimensions led some developers to compromise by pairing the visual flash of 3D with traditional 2D side scrolling gameplay. These games are often referred to as 2.5D.[4] The first such game was the Sega Saturn launch title, Clockwork Knight (1994). The game featured levels and boss characters rendered in 3D, but retained 2D gameplay and used pre-rendered 2D sprites for regular characters, similar to Donkey Kong Country.