Underground Adventure

Underground Adventure is a NES prototype game, a classic arcade-ish game, 1 screen levels, gems to collect in a certain amount of time, monsters to avoid (or shoot if you collect the right item) and a 2 player co-op mode. It was created for the NESmaker Byte-Off Competition 2019. Follow Harry & Jack's adventures in mysterious caves. Collect all the gems to complete the levels. Escape from monsters and complete all levels to reach the final exit!