Enter one of the following codes at the options menu to activate the corresponding cheat function.

Effect Password
Fifty keys 378829
10 extra lives, 50 keys, 50,000 credits 736353
10 extra lives and 50 keys 098654
Press N during game play for level skip 243433


Level Password
2 353828
3 108383
4 370101
5 982822
6 847464
7 737373
8 928112
9 267364
10 193831
11 090921
12 309383
13 101221
14 103992
15 998112
16 125332
17 091233