Cheat mode:
Hold A + B + C at the title screen to access a hidden screen with level selection and other options.

Level	Password
2	CFR
3	HOF
4	RCL
5	SLR
6	JHO
7	FCJ
8	CRS
9	LJS
10	ROC
11	OSH
12	HRL
13	FSL
14	OFJ
15	JRF
16	LOL
17	FLR
18	RHJ