99 damage points
Select your fleet information, then end your turn immediately.
Hold [Left] + [Select] + [B] during the enemy's
turn.
Super torpedo
You may shoot through islands to hit ships on the opposite
side if your submarines are lined up.
| Level | Password |
| Sewall Island | BYRBYD |
| Deadly Eight | LTNGTH |
| Sea Chamber | CHRRGM |
| Swamp Land | TW7ST7 |
| Cursed Straits | 6PTRTS |
| Innocent Sea | 55T5D5 |
| Twilight Island | C90VDP |
| Diamond Island | BWFWLS |
| Dragon Channel | BYRWGY |
| Last Mission | LRDMR1 |