Level passwords:
In Game Type C, there are a total of 50 levels (called Screens). You get a password after every five Screens. Unfortunately, the highest Level you can start at is Screen 46.

Screen	Password
6	XPQ
11	JGS
16	ASL
21	PDS
26	WKK
31	YLY
36	RFV
41	PRC
46	NHM