From the Main Menu, choose Continue and enter one of the following.

Effect	Password
Stage 01 - Spongebob's Block	PN6P6LLLL3
Stage 02 - Downtown	HGH0HK2K2K
Stage 03 - Outer Town	GHGZGYFYYY
Stage 04 - Sandy's Park	LMLL3YFYYY
Stage 05 - The Goo Lagoon	PN6P6P6PP6
Stage 06 - Undersea Desert	NP5N5FYFFF
Stage 07 - The Carnival	65P6PH0H0H
Stage 08 - Jeffyfish Fields	LMLL3-T-TT
Stage 09 - Kelpazoic Jungle	RQR88DDDDD
Stage 10 - Rock Bottom	6HGZGSSS99
Stage 11 - Dutch Under	FDYFFFYFFF