The problem SmartPlay solves

1. Reduces Cost Barrier:
   The ingame cosmetics in popular games are simply just too expensive. Poor financial decisions can be made in haste by those really looking to hesitantly purchase them. A Rental app for these cosmetics will significantly reduce the cost barrier, allowing them to be more accessible.

2. Player Retention:
   Affordability and accessibility brings forward the "Try before you buy" model. Gamers can rent items for a limited time to test them out and decide if they want to make a full purchase. Of course, if the plan in contention is to make a hefty full purchase eventually in the future, the model can provide clarity by testing the asset for a much acceptable price to see if its worth it or not.

3. Dynamic Customization:
   It enhances the gaming environment, allowing the opportunity to be open to customization and playing the game from different perspectives.

Challenges we ran into

1. Developing smart contract logic and integrating it with the front-end had its challenges.
2. Debugging the contract code, deploying it correctly, and ensuring a seamless user experience were all hurdles.
   These experiences taught us valuable lessons about robust testing and user communication in blockchain development.