Hyper difficulty:
Press C(10), then enter the options screen. A new "Hyper" difficulty level that allows faster acceleration will be selectable under the options screen.

View ending sequence:
Enter ENDING as a password.

Secret ending:
View the endings after all five goals. Press Start after the ending for the fifth goal to view an alternate ending and credits.

Hyper options:
Press Start at the title screen, then press A(11), B(3), C(8). The hyper options selection, with "Stage Select" and "Mode Select" options, will now be available. The mode select options are as follows.

Mode	Effect
1	Collisions disabled
2	Timer disabled
3	Modes 1 and 2 active
4	Display debug codes
5	Modes 1 and 4 active
6	Modes 2 and 4 active
7	Modes 1, 2, and 4 active
8	Unknown
9	Modes 1 and 8 active
10	Modes 2 and 8 active
11	Modes 1, 2, and 8 active
12	Modes 4 and 8 active
13	Modes 1, 4, and 8 active
14	Modes 2, 4, and 8 active
15	Modes 1, 2, 4, and 8 active