Hold + or + at the Game Over screen after using the last continue.
Action Replay codes
- Infinite energy
- Infinite magic potions (replace the X on the code for a number from 1 to 8 to start [and keep] with 1 to 8 magic potions. Note that putting a high number [e.g. 8] on the code and choosing a magic that uses less magic potions [e.g. Thunder] won't make a difference – it'll act as if it was the highest number of magic potions allowed for that magic [e.g. 8 for Thunder = 4 on the game])
- Infinite lives (starts with a strange "5", but then keeps showing 2 after dying for the first time)
See the main page for Golden Axe