You can access it
HERE, though the site also has other Touhou flash games: this one's my favorite, though ^^; .
This is actually a puzzle game, using Flandre's crystals on her "wings": you set crystals on them, while trying to keep her in balance, or she'll fall with the one-sided excess of weight (and probably try to kill you if she knows where you live ._.; ).
You increase your score by shattering crystals using a combination of colour-matching combinations. The crystal you are about to put will form a combo chain if the crystal behind the one you intend to put your crystal on is of the same colour. Visual example >w> ...
____ (Flandre's right wing)
ooooooooNow we have a red crystal, let's put it to the far-left
3nodding .
____
oooooooooSince the crystal behind the one you put the red crystal on matches with the one you just put, it forms a combo chain, shatters the crystals and adds 3 points to your score
3nodding .
____
ooooooooThis makes keeping Flandre in balance trickier, but it's best to keep this in mind and anticipate where you'll put your crystal next to earn a better score and manage to keep Flandre in balance longer
3nodding .
Comment on how fun, difficult, addictive you find the game to be, your personal high score, how catchy the music is, etc xD . Have fun with the link and discuss
3nodding .