From the Game Box:
Before Princess Dazzle can become Queen, she must complete the "Columns Crown" by encrusting it with 24 Magic Gems. Alas, the Magic Gems have been scattered throughout the kingdom. Rumor has it that forest-dwelling thieves are hunting the gems and rapidly collecting them. Help Princess Dazzle claim her throne by clearing gems from each level to recover the Magic Gems. Can you collect them all?
New Survival, Versus, and Flash Columns modes.
Battle your friends for Magic Gems in 2-player mode.
Collect and combine Magic Gems to unleash spectacular elemental attacks.
Trade Magic Gems by linking to other Game Boy Advance systems.