bonustreasure
nounUK /ˈbəʊnəs ˈtrɛʒə/
US /ˈboʊnəs ˈtrɛʒər/
A bonus treasure is an extra special prize you get in addition to what you already have.
After finding the hidden chest, the player discovered a bonus treasure inside.
OTHER MEANINGS
2. An additional valuable item found unexpectedly during a search.
The divers found a bonus treasure buried near the shipwreck.
3. A hidden extra reward in a game that players can collect.
Collect all the coins to unlock the bonus treasure at the end of the level.
4. Something extra and valuable that comes as a pleasant surprise.
Getting a free dessert was a bonus treasure after the meal.