Zuma's Adventure mode offers 13 levels of chain-busting fun, each with a different chain configuration. Finish these levels and you unlock extra levels in the game's Gauntlet mode, a marathon challenge where you try to hold back one long, neverending chain.
It's a bit of a bummer that Zuma is single-player-only: I would've loved to go head-to-head with a buddy over Xbox Live. But the game still packs plenty of thrills into a tiny package. Ten bucks for 10-plus hours of stone-cold fun? We hear, oh powerful Zuma, and obey.