This is a hack of the US release of Boulder Dash for the NES created by Dragon Eye Studios. It's not an officially released game but a fan-made modification.  The 'Greed' element likely refers to an alteration in the game's rules or objective, potentially increasing the difficulty or focusing on collecting more gems.  The version number suggests it's a work in progress.

Boulder Dash (USA) [Hack by Dragon Eye Studios v0.80] (~Boulder Dash Greed)

Boulder Dash (Europe)