Bubble Bobble Old and New
Game Boy Advance
Constant E-X-T-E-N-D bubbles:
At either the "Old" or "New" Main Title Screen, enter: Up, Up, Down, Down, Left, Right, Left, Right.
Original Mode in "Old":
At the "Old" Main Title Screen, enter: L, R, L, R, L, R, Right, Select.
Power-up Mode in "Old":
At the "Old" Main Title Screen, enter: Select, R, L, Left, Right, R, Select, Right.
Super Game Mode in "Old":
Beat the boss in Super mode with 2 players. At the "Old" Main Title Screen, enter: Left, R, Left, Select, Left, L, Left, Select.
Original Mode in "New":
At the "New" Main Title Screen, enter: L, R, L, R, Left, Select, Right, Select.
Power-up Mode in "New":
At the "New" Main Title Screen, enter: Left, Left, Left, L, Right, R, R, L.
Super Game Mode in "New":
Choose a save file, then go to the "New" Main Title Screen. Enter: Right, R, Left, L, Select, R, Select, L.
Thanks to Revolution readers ol'skooler!

Embark on an inspiring mission of human connection beyond the UCA. Sam — with companions by his side — sets out on a new journey to save humanity from extinction. Join them as they traverse a world beset by otherworldly enemies, obstacles and a haunting question: should we have connected?