Lower than expectations, with minimal game duration due to a small battery or excessive consumption (about 10 minutes of operation, without load, indoors and with the lighting turned off). Quite slow movements, weak arm, etc.
It's a shame because in the product description it is mentioned as "playing time about 20-30 minutes, charging time as 120 minutes" and the battery type is Ni-Mh 400mAh, none of which is true, nor is the included battery which was Ni-Cd.
I should also add that a rudimentary instruction leaflet (three pages) that was included in the box was written in Polish.
Such a shame, because even though we bought the game to play, it now decorates our bookshelf.