Easy and great fun!
Brought it for my girlfriend since she\'s a great fan of HelloKitty but had a go at it today and it\'s alright. It\'s quite simple (obviously at my age), but would probably pose a slight challenge for the kids - but with the infinite retries you get if you loose all your apple\'s (health), then you can jus keep on trying till you beat the stage/boss.
Overall - worth getting if you like HelloKitty as it\'s features many other Sanrio characters to be your friend/partners in the game and it\'s easy, but not stupidly easy - especially with the boss stages, lol. ;)
Hope this helps.