The "Hello Kitty" game isn't quite what you expect - instead of tea parties and general cuteness, it's a frenetic beat-em-up platform game in the "Super Mario" style, with a low level of difficulty for the little ones.
It doesn't quite fit the "Hello Kitty" family very well, and perhaps the game was originally designed for another purpose - I've not seen Kitty beating up aliens in any of her previous adventures that my little daughter watches. Somehow Kitty and her friends and family have been shoehorned in there, but you can't help feeling that the developers had this game in mind for something else.
The game's designed for youngsters, so the difficulty level isn't that high - there are 16 levels of skating fun, where Kitty must beat up the invading block aliens to rescue her friends and collect treasures and powerups. The levels are fairly varied and include some slightly tricky challenges involving cannons, bombs and bosses on the way to destroying the invaders & saving the Earth. It's not that complex, and looks very pretty, but there are major issues with the camera, which is reluctant to actually let you see what's happening a lot of the time.
16 levels isn't much compared to "Super Mario", but my 5-year-old found it very entertaining & not so challenging that it put her off. She enjoyed exploring & the frenetic beat-em-up sections, and found the controls nice and easy to navigate. She could play on her own without too much help & that's where the game really works. It's simple, good-looking and easy to play, and will suit the younger age group that are maybe just starting to take an interest in games.
Overall, the game is completely at odds with the "Hello Kitty" image, but it's cute and very playable for the little ones. It's nowhere near as detailed or immersive as the adult titles, but it still has its charm for youngsters.