The holiday season seems to be the best time of the year for indie developers working on retro machines, as the just-released Crimbo - A Gloop Troops Tale so emphatically proves. It's a brilliant, freeware platformer for the ZX Spectrum sporting Santa and some utterly jaw-dropping graphics, as well as a lovely Christmas-y soundtrack (provided you're playing the 128k version, that is). Oh, and it's a tough little thing too. The unfortunate souls not actually having access to the real 8-bit micro, can of course enjoy Crimbo via emulation. Take your pick here.