This can be done by holding Square and then pressing Select instead of pressing Start and going to 'Gate Scroll'.

Level 20 Character:
If you begin a new game in 'Champions: Return to Arms: with a 'Champions of Norath' game file that has a level 20 character on it that character will be at level 20 in the new game and have 999 Skill Points. To do this hold L1 + R2 + R3 + Triangle and save the 'Champions of Norath' game before importing it to 'Champions Return to Arms'.

The Sword in the Stone:
Collect ALL 11 Bloodstones to access the extra area in the last bonus round where you have to beat a series of 5 bosses. When you have defeated the boss Innoruuk you can return to the sword and draw it out of the stone. Although the sword has a level minimum of 33 there is no requirement to draw it out.