Really cool one, it can be polished into full fledged game, won't even need to expand on anything but fixing things (not meet any bugs, but they always happen) or make things more effective (like making collect sound go up in pitch as combo progresses). Progression is nice, only thing I'd cound wish is more branching of progression, currently people can branch into getting more enemies and bounty with shields or keep it pure, increasing only gem power, moves and so on. Without that, game becomes a bit same after you see all upgrades. But really cool what happens on 12th day with Mikes jumping around, dropping big gems, gives boost to progression.
Will be honest, with artstyle of cutscenes in half of cases it's hard to see what's happening, but that's just question of choosen artist...
Definetely a candidate for a win