Street Trace NYC is a cel-shaded combat hoverboard racing game set in the Outer Boroughs of New York City by independent software developer Gaia Industries for the Xbox 360's Xbox Live Arcade service. The game gets its name from the New York City setting and the Tron-like light trails the hoverboards generate. The game was released on August 22, 2007, and costs 800 Microsoft Points ($10 USD). The game features both single player and multiplayer play.

The single player game involves a story arc that comprises five tournaments which include 63 matchups and three bosses, as well as 18 "trial" games that will be posted on the Xbox Live online leaderboard. The player is awarded four types of medals depending on the skill of their performance (Bronze, Silver, Gold, Platinum) in both the tournaments and trial games. Here's an useful list of unlockables for you to use while playing the game:

Unlockables

Achievements
Complete each achievement to get the allotted gamerscore.

8 Player Award (10) - Complete an 8 player match over Xbox Live.

Bronze Medal (5) - Earn a Bronze Medal in a Time Trial.

Cash Tournament Pro (15) - Complete 10 Cash Tournaments on Xbox Live.

Flip Award (5) - Perform a Back Flip.

Grind Award (10) - Take down an opponent while on a grind.

Pickup Tournament Pro (15) - Complete 10 Pickup Tournaments on Xbox Live.

Platinum Medal (25) - Earn a Platinum Medal in a Tournament by winning every match.

Rampage Award (20) - Earn 4 Takedowns in a row before another Tracer can get one.

Ranked Tracer (20) - Complete 25 Ranked Matches on Xbox Live.

Tracer Champion (30) - Earn a Gold Medal in the Battle Royale Tournament.

Tracer Veteran (20) - Earn 100 Points in Single Player Tournaments and Time Trial Medals.

Upgrade Award (25) - Fully upgrade your board and your weapons.

Some gameplay footage for the eager fans, here: