Here are some cheats and tips for the game Solstice.
Unlimited lives:
Press Select during game play to display the sub-menu.
Press B, Start(2), B(2), Start(2),
B(2), Start(3), B, Start, B(3),
Start(3), B, Start, B, Start(2),
B, Start(2), B(2), Start, B,
Start. The screen will flash to confirm correct code entry.
Note: This also refills all potions.