Infinite Psyche Energy in Free Play mode:
To unlock infinite Psyche Energy in Free Play mode, beat all Extra Challenge stages.
Bonus levels:
Unlock the following levels by performing the corresponding tasks:
Levels 1 to 8 – Beat three of the five stages from the previous level to unlock the next level.
Bonus Challenge stage 41 – Get a “Gold” or better rank on Warrior Hunt Level 1.
Bonus Challenge stage 42 – Get a “Gold” or better rank on Warrior Hunt Level 2.
Bonus Challenge stage 43 – Get a “Gold” or better rank on Warrior Hunt Level 3.
Bonus Challenge stage 44 – Get “Gold” or better rank on all Warrior Hunt levels.
Bonus Challenge stage 45 – Get “Platinum” on all Warrior Hunt levels.
Extra Challenge stages 46 to 50 – Beat all 40 stages in Challenge mode Levels 1 through 8.
Gods:
Unlock the following Gods by performing the corresponding tasks:
God of Fire – Defeat the Demon of Harvest in Challenge mode.
God or Goddess of Wind – Defeat the Demon of Water in Challenge mode.
Goddess of Harvest – Beat Tutorial Stage 5.
Goddess of Water – Defeat the Demon of Fire in Challenge mode.
Landscapes:
Unlock the following landscapes by performing the corresponding tasks:
8-Bit Plain – Beat Challenge Stage 26 in Level 6.
Fairytale – Beat Challenge Stage 2 in Level 1.
Hanging Gardens – Beat Challenge Stage 27 in Level 6.
Horror – Beat Challenge Stage 11 in Level 3.
Magma – Beat Challenge Stage 7 in Level 2.
Outer Space – Beat Challenge Stage 16 in Level 4.
Persia – Beat Challenge Stage 6 in Level 2.
Snowfield – Beat Challenge Stage 21 in Level 5.
Yamato in Japanese – Beat Challenge Stage 3 in Level 1.