Star Fox 64 

Note: This game is also titled Lylat Wars.

Move heads 
At the title screen, move the analog control stick around and the Star Fox crew will follow the moving numbers 64 with their heads.

Turn off cross-hair 
Pause the game and press R.

New title screen 
Earn all the medals in Expert mode.

Play on foot in versus mode 
Earn a medal on Venom in Expert mode.

Play with tanks in versus mode 
Earn a medal on Venom.

Expert mode and more 
You must earn a medals on all fifteen levels to unlock expert mode, tanks in versus mode, and Graphic Equalizer in the sound test. To earn a medal, you must either get or exceed the number of hits listed below for each level.

Level Hits 
Easy 
Corneria 150 
Meteo 200 
Fortuna 50 
Sector X 150 
Titania 150 
Boluse 150 
Venom 200 
  
Medium 
Katina 150 
Solar 100 
Macbeth 150 
  
Hard 
Sector Y 150 
Aquas 150 
Zoness 300 
Sector Z 100 
Area 6 300 
Venom 2 200