Angry Birds is an excellent Time-Killer; and its very Peaceful, yet challenging as well. I usually play it without sound because most of the sounds in the game are rather overeggagerated and way too upbeat. The game Spoils Players like crazy, by that I mean they are given a TON of rewards and bonuses; there was even a sale of the "Mighty Pack," containing numerous Power-Ups and a few Tickets to the Mighty League. The Application is very generous, but it will do without IAPs (In-Application Purchases.), because that is a Harbinger that Rovio is somewhat Greedy. Speaking of Rovio, I removed a star from my reivew due to the fact that (Ever since 2012.) Rovio is always releasing rehashes of the original game in different variations (Star Wars, GO!, Star Wars II, Transformers, an unnecessary sequel (Angry Birds 2), Stella, Epic, POP!, the list goes on.). Rovio even collaberated with Hasbro and ripped off Activisions Skylanders Idea of "Toys-Coming-To-Life" with "Telepods." Real Original (Sarcasm.). I dont understand why Rovio didnt stick with the Original Application besides make a bunch of unecessary Spin-Offs. Other than that, the Classic Angry Birds is great and challenging.