Ninja Chicken is only available as a free, ad-supported app in Google Play, and is normally priced at $0.99 in the Amazon Appstore. As we've noted before, there are sometimes differences in pricing and availability between the two marketplaces.
Ninja Chicken is described as follows:
The Funky Chicken who Thought he was a NinjaNinja Chicken (free, ad-supported) is rated at 4.2 stars in Google Play, and is rated at 4.2 stars in the Amazon Appstore.
MoMinis is proud to present Ninja Chicken. A terrible, most unfortunate accident has happened leaving our poor chicken with chicken dementia. This funky chicken now truly believes that he is a ninja and not just any ninja--the best ninja of them all, with the greatest powers ever bestowed on any ninja ever before.
Our poor chicken is now on a (dangerous) ninja quest to prove to all of the other chickens that he is indeed a ninja. You can either stand by and watch this funky chicken crash into small, itsy-bitsy pieces, or you can show the other chickens that we all have a ninja inside of us!
- 30 challenging levels
- Dozens of mission to complete
- Cool and unique graphics
This is, however, the newest in a string of such apps in the Amazon Appstore.
Since the two marketplaces have equivalent ratings, even with one of them being ad-supported, and taking into account the normal spoof one-star ratings in the Amazon Appstore, we'd say this game is a "buy" while it's free.
what it means to developers.
Amazon.com opened up the Appstore despite a lawsuit by Apple, which has previously trademarked the term "App Store." Microsoft has filed an appeal against that trademark, saying the term is too generic. Amazon.com has responded to the lawsuit in the same manner.