Level Passwords...
	Level Select...

Level - Password

2 - NATURAL
3 - PROJECT
4 - PROBE
5 - MACHINE
6 - AROUND
7 - STAR123
8 - MASTER
9 - COMPUTER
10 - COMMAND
11 - PLAYER
12 - SHATTER
13 - BUGS
14 - COMPLETE
15 - MISSION
16 - VICTORY

At the title screen, press Up, Up, Down, Down, Left, Left, Right, Right. Now continue through the menus, and Stage and Round can now be changed.