Good but, get the free PC download first.
In the end, get it if:
1.You liked it on PC and want it on the go
2.You like to be frustrated by games
3.You're poor (it's only like $20)
Website (everyone likes free stuff, except Chuck Norris):
Flash (Chuck Norris approved):
http://www.addictinggames.com/ngame.html?cid=YSSP
Download (Chuck Norris not approved because it's free): http://www.metanetsoftware.com/