In responce to a previous comment, there's a differnece between challenging and nearly impossible. Challenging games have a skill curve where the game starts easy and gets progressively harder. This game just starts hard. There's not enough time for a person with average reaction speed to make a single mistake, so the second you do it's just game over.
Also, all of the games here are free, so that's really no excuse for a poor quality game. Put in a bit more dev time, give the game some skill progression, maybe polish it up a it, and try to give it something to set it apart. Until then, it's a very mediocre effort.