Formation Armed F (TurboGrafx-16)
|Formation Armed F|
This game has a hidden level select.
Formation Armed F details the horrors of uncharted space...and has you deal with them by shooting everything until it's all dead.
At the title screen, press I, Right, Left, II x17, Up, Select, Down to access a hidden options menu containing a level select, invincibility toggle, and lives toggle.