Clockwork Knight is a side-scrolling platform / action game that was developed and published by Sega in 1994 for the Saturn. The game was shown in some magazines and VHS videos before the release of the console, and in this early beta version Clockwork Knight had some big differences, as noticed by Ritz in the Sonic Retro Forum:
Clockwork Knight looks completely different here; 92% of the levels’ foreground content was stripped from the game, the animations and movement physics are noticeably unrefined, Pepper has a different attack animation, the Toy Can has a fucking whacky damage routine (also with an unused animation), and the Lubancy character that wound up totally absent from the actual games is a functional enemy. And it’s all set to an original rendition of the game’s theme!
Thanks to Rod_Wod for the scan!