Mouse to select and move piece.
Scroll wheel to rotate piece.
Hit Start in the top left.
Level 6 is the quickest to fail on.

Level 1

Level 2

Level 3

Level 4

Level 5

Level 6

Level 7

Level 8

Level 9

Level 10

Level 11

Level 12

Level 13

Level 14

Level 15

Level 16

Level 17

Level 18

Level 19

Level 20

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https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2880052179