Time Bomb Game: Brain training

This is a simple brain-training game. It will be a great time-killer!

〜The rule is very simple!〜 You will be given random number. You and an opponent or a computer have to decrease 1 to 3 from the number alternately. Finally, player who set the number to 0 is loser!

〜You can play 5 modes in this game〜 There are "EASY", "NORMAL", "HARD", "EXPERT", and "2P". "EASY" and "NORMAL" are very simple, but "HARD" and "EXPERT" are very difficult! Please make a strategy before challenging! In "2P", you can play other person. Please play with your friends or your family!