In principle, awesome, but ...

Two things make the game fun to naught: the loud annoying engine noise (unless dieFellpfoten are deaf) and the rotating too fast or just back and forth "mouse under the cloth".
The principle "Something rustles under a hiding place" is predestined for cat fun, my fur noses, however, have reacted like:
My black and white, a burly "muscle-bound" hangover type street fighter -er tears during "play" before thick terry towels with the hind legs through, the estimated number of mice or rats 45 / year (it is not free-roaming - we have a fenced garden and live in rural areas), diverse unwary birds or moles, dragonflies not counted. He sniffed briefly at the rattling rotary device, then caught a piece of plastic cord that I had attached to the rotary Angel purpose of feigning a real prey, the table leg, the resultant grinding noise chased him probably afraid and he was gone. He could probably do not understand that for the first time he had the right to loot that continually present themselves to an exact circular orbit and moved back.
The two females -Also Stubentiger but no urge in the garden to go- there were tougher, they observed the interesting "device" to "mouse" the rotation approaching under the cover, and then lost interest, as well as they seem too monotonous and geometrically exact proceeded and the "noise" was too much.
My fourth Fellnase, the "boss cat" had not even made until now the trouble to examine the toy, as I know him, that means as much as "totally boring".
Conclusion: quiet engine noise, a slower rotational movement, which also would have to run in a zigzag manner and the part would be a hit! Otherwise I'll probably put "the rotation thing" next spring in the garden somewhere in the grass - a fate that had already share a number of "Cats just play items". To throw it to me too good, perhaps the prey machine has more outdoor attraction.