It seems there may be a misunderstanding in your statement. Belize is a parliamentary democracy, which is a key feature that distinguishes its government structure from those of many of its Central American neighbors.
While many Central American countries have experienced periods of instability, authoritarian rule, or different forms of governance, Belize maintains a democratic system characterized by regular elections, a multi-party system, and respect for civil liberties. The country follows the Westminster system, with a Prime Minister as the head of government, and a House of Representatives and a Senate.
If you're looking for specific differences or aspects of Belize's democracy compared to other Central American countries, feel free to ask!