Thanks to Blue's News for pointing to a Megatree Ltd. press release discussing the charity auctioning of the original development discs for Mega-Tree
, the legendary, unfinished Commodore 64/Spectrum title that "was [to be] the third in a trilogy of games following 'Manic Miner' and 'Jet Set Willy'."
The currently-in-progress Ebay auction
, to benefit Cancer Research UK
, has much more info and concept drawings of the game sometimes called Miner Willy Meets The Taxman by co-creator Matthew Smith
, also noting that "The Atari hard disk containing more 'Mega-tree' graphics was 'lost' when it accidentally dropped off the back of Matthew's motorbike when he went through the Mersey tunnel."