This was a special Christmas themed demo of Fantastic Dizzy, released on the coverdisk of Amiga Power Issue 33.
This game is designed to run with 1MB of ram, but does not work with an A500 with 512K chip + 512K expansion. I patch was included on the Amiga Power Issue 35 coverdisk to fix this problem.
WinUAE settings: To make this game run in WinUAE set it to an A500+ with a basic configuration.