This game contains examples of the following:
- Boss Rush: The second to last level has you face the bosses from levels 1, 3, 5, 6 and 7.
- Bowdlerise: This game got censored when it hit American shores. You only rescue the king, while the Princess and her sister aren't mentioned anywhere.
- Color-Coded Multiplayer: Player 1 is red and player 2 is green.
- Difficulty by Region: The American version is harder. Once you reach level 9, you restart from that level when you lose all of your lives.
- Instant Awesome, Just Add Dragons: The dragon boss of level 9.
- Playboy Bunny: Kotomi. This is also probably why the game was censored for American audiences.