Play Checkers
Enter CHCKRS as a password.

Play Chess
Enter CHCKMT as a password.

Play Invaders
Enter ZNXNVR as a password.

Level Passwords

Level       Password  
2           YTBHMGH  
3           JRQDGNP  
4           RCZKTLN  
5           PWDNRSX  
6           TZBMHKL  
7           CKXLDCN  
8           KCCRZRT  
9           MBNVXJC  
10          QQKFVWD  
11          NZSTDTP  
12          LYHJLBN  
13          DLGFHQK  
14          HSJVLXF  
15          FZRJTVP  
16          GYWCKTH