Enter HKSGP as a password, then pause game play and select "Quit".

Level Easy Hard

2 NRBGB DTBGB
3 RWHGK
4 NGGGC
5 BMFGT
6 LRHGF
7 NRPGD
8 RLPGJ
9 LWRGH
End JGSGF