I have played and loved all the haiku games, so i was really excited when i saw this new app, where there were multiple games within one app! i love that idea, i love how we no longer have to download a new app every time a new game comes out. and yes, another thing that is different from in previous games is the keys. i am pretty annoyed by the amount of people that have to audacity to complain about the keys. i have always been extremely impressed with these haiku games, and always so so so grateful, and surprised, that i could play them for free without having to buy the app. these games are such high quality, and the creators really deserve to make some money out of this, so if that means adding keys then i completely support that. these games are still able to be played 100% free, and the adds are to such a minimum you often forget the game even has them. i, personally, actually enjoy the keys, because it allows me to pace myself while playing the game. i used to waste my entire day away playing these games, but now i have to pace myself, which is good. one key gives you at least an hour of gameplay, and when the key holder is full, there are 2 keys. one really shouldn’t play a game for longer than two hours a day, but if you really want to, you can help support the creators by buying a key, or you can wait three hours, which really isn’t that long, given you get two hours of game play after each wait. i love love love these games, my only complaint is waiting for the new games to come out. it would be great if there was a release date, so i could count down the days.