From the official Big Bang Mini site:
"This fast-paced shoot 'em up puts a new spin on classic arcade style gameplay allowing you to blast down hordes of imaginative enemies with explosive fireworks launched at the flick of your wrist. Maneuver your vanquished foes to advance towards big boss battles. A number of special powers will be made available as you move from one exotic locale to the next where one wrong move or one missed shot could be your last."
So basically, one big advertisement. My own review coming soon. Promise.