While you are at the first "Start" screen, quickly press Up, Down, Up, Down, Left, Right, Up, Down, Right, Left.

Small Blasto

While you are at the first "Start" screen, quickly press Right, Right, Left, Down, Up.

Special Weapons

While you are at the first "Start" screen, quickly press Up, Up, Down, Down, Right, Up, Right, Down, Left, Left. Then, every life starts with Rapid Fire guns, followed by a Flame Thrower, Heat Seekers, Ice Gun, and Nukes before repeating.

Blue Lasers

While you are at the first "Start" screen, quickly press Right, Up, Down, Left, Down, Left, Right, Up, Down, Right.

Fire Charged Shots

While you are at the first "Start" screen, quickly press Left, Left, Right, Left, Up, Left, Down, Down, Left, Left.

Air not required when swimming

While you are at the first "Start" screen, quickly press Down, Down, Down, Left, Right, Down, Right, Up, Right, Right.

Motion Sickness mode

While you are at the first "Start" screen, quickly press Left, Down, Left, Right, Down, Right, Left, Up, Up, Right.