Install it normally, play it normally, do not be normal after...

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                21579   35382  61.0% -lh5- 2b0c Aug  2  1997 CdBS_WormsDC_Levels/Beast.ilbm
[generic]                 9644   15096  63.9% -lh5- db2f Aug  3  1997 CdBS_WormsDC_Levels/beastmnt
[generic]                17204   34402  50.0% -lh5- 5f6f Aug  7  1997 CdBS_WormsDC_Levels/Elec.iff
[generic]                17250   41982  41.1% -lh5- ffb0 Aug  4  1997 CdBS_WormsDC_Levels/naz.IFF
[generic]                  151     210  71.9% -lh5- da52 Sep 13  1997 CdBS_WormsDC_Levels/ReadME
[generic]                  369     850  43.4% -lh5- 7633 Sep 13  1997 CdBS_WormsDC_Levels/ReadME.info
[generic]                  716    1352  53.0% -lh5- 5042 Sep 13  1997 CdBS_WormsDC_Levels/TWDIY.info
[generic]                17818   33730  52.8% -lh5- 1ddd Sep 13  1997 CdBS_WormsDC_Levels/TWDIY/BEAST.DIY
[generic]                12871   28348  45.4% -lh5- e07a Aug  7  1997 CdBS_WormsDC_Levels/TWDIY/ELEC.DIY
[generic]                12305   64984  18.9% -lh5- 92db Aug  5  1997 CdBS_WormsDC_Levels/TWDIY/NAZ.DIY
[generic]                  714    1352  52.8% -lh5- 5ec4 Sep 13  1997 CdBS_WormsDC_Levels/TWMOUNTAINS.info
[generic]                10592   26720  39.6% -lh5- 7d6a Aug  3  1997 CdBS_WormsDC_Levels/TWMOUNTAINS/BEAST.MNT
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        12 files  121213  284408  42.6%            Sep 13  1997