You need full version of Embodiment of Scarlet Devil (東方紅魔郷), to play the replay file.
Viewing Insturction:
(1) Download the Replay File
(2) Rename it to th6_##.rpy and copy it into the replay folder of within your ESD folder.
(3) Run the game to see the replay.
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Lunatic ReimuB 494,633,680
Player: ZNA
http://score.touhou-storm.com/replay6/th6_ud00ba.rpy
Extra ReimuB 575,153,530
Player: ZNA
http://score.touhou-storm.com/replay6/th6_ud00ba.rpy
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There are more to see at ...
http://score.touhou-storm.com
IMPORTANT: Never, EVER CLICK "削除".
(as 削除 = Delete)