Solstice is pretty hard, your wizardy guy is very fragile and not very maneuverable, kind of like real life wizards. But there's a way to give yourself an advantage.

First, press Start a new game and then press Select to access your inventory screen.

Then, press the following buttons:

B, Start, Start, B, B, Start, Start, B, B, Start, Start, Start, B, Start, B, B, B, Start, Start, Start, B, Start, B, Start, Start, B, Start, Start, B, B, Start, B, Start

Your screen will start flashing weird colors.

Exit the inventory screen and come back to find that you have four full potions and a stack of lives (about 90). Will that be enough of an edge for you to finish the game? If not, it'll sure help you play longer.