For a free game this kicks ass!
What you have to do is score 3 or more hexagonal shapes next to each other ( a bit like tetris) but its not just that, after about 2 levels Bombs will start dropping etc so you've got to be aware of of where you score your points as you dont want to screw up later on in the game.
Well the graphics, well i cant really review them as all they are is just different coloured hexagons but the colours are very nice indeed.
The music is a bit crap but you can always turn it down.
Overall Hexic HD is a solid game thats fun to play while you are trying to rack up some cash to get a 'proper 360 title'