Remember Tap Tap Revenge? Im pretty sure most of you do, otherwise you probably wouldnt have found this app. This app scratches the proverbial itch for the aforementioned game, key difference being that the songs are all user-generated, from any song they want to play.
Now, this would be a great game if those features actually worked. Right now, its just a huge buggy mess that crashes half the time whenever you play a song or record a song; hell, it crashes on almost any action that Im afraid to touch anything.
Plus, being a "game-maker game", where most of the fun is in user-generated content, Poes Law applies to a huge degree. (90% of everything is crud)
Then theres also the issue of finding a song you actually have in your library, and sometimes the same song you have feels different than the tracks, making you have to fiddle with the controls a bit. Also, the song recording is rather primitive; you either record it right the first time, or scrap the whole thing if it doesnt feel right. You could try editing, but thats also tedious. In future updates, make these features somewhat easier to use.
If we were hunting for prized artifacts of an ancient civilization, this would only be a mouldy little pebble discovered. But hey, its the most playable compared to the rest of the garbage in the app store.