# Marketplace An important section of the MetaPopit game is the Marketplace. It’s a place to buy, sell, and exchange items and power-ups with the community. This in-game market can be opened from the menu. In the in-game market, for the Hard currency players can sell: * hints * checkpoints * extra-time * golden keys In the in-game market, for the Hard currency players can buy: * hints * checkpoints * extra-time * golden key * cosmetics * recovery formula NFT will be sold and bought in the existing, external market, not in our in-game market. Players can use free exchange in the in-game market: * X coal = 1 extra time (+2 min) * X fuel = 1 checkpoint * X energy cell = 1 hint * X coal + X fuel + X energy cell = Hard currency --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.metapopit.com/metapopit-game/marketplace.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.