I'm a bit of a fan of your work (Silver nugget especially) yet I'm not a massive fan of puzzle games but i was willing to give it a go and I'm glad i did, the game it's self still has work to be done even if it's rather small things.I'll brake down the review for easier reading:
Art:Simple,bright but functional and fitted the needs of the game i wasn't expecting a masterful visual but even so the art was most defiantly above par. I can't think of any real criticism for it. 8/10
Audio:The main menu music i found rather repetitive and basic and in all honesty could be much better but the main game music was very befitting for the fast paced action and more than made up for the main menu music. 7/10
Gameplay:The game it's self was rather enjoyable if short but I'm guessing that's what you where aiming for, something that could be played for 5 minuets during a coffee brake or while somethings downloading and if that's the case it achieved it's goal. The scoreboard was a nice feature if (and this could just be my PC here) rather slow to load. A few different modes would have been nice e.g challenge,campaign/story etc. or missions the give a better sense of an ultimate goal but once again if it's just a 5 minuet game no worries. 8/10
Overall i enjoyed playing this and that's whats really important, as i said above the sounds the only thing stopping this being a 4.5 or even a 5 but it's still a good game by any means.
I wish you the best of luck with your future endeavours and hope you take these points into consideration :D.