A relatively early version of what would become a kind of niche adaptation of the standard quiz game. This one casts you as an adventurer wandering further into a dungeon, and defeating monsters by answering quiz questions correctly. Just use the number keys to answer, and the letter keys for any items you pick up. You start wandering without being in battle, and there's no penalty for missing questions in that mode, but you'll take damage from wrong answers once actually in combat.
This game appears to crash Anex86 on start-up, so you're better of using another emulator for it (Neko Project 2 worked fine.)