Where in Time Is Carmen Sandiego on the NES? It's got a cool idea – you chase Carmen and her crooks across history while learning fun facts. But man, it's tough! The clues are vague, the time travel feels pointless at times, and you spend half your time in the library just looking stuff up. It's great for history buffs or if you're feeling nostalgic, but unless you have an old guidebook on hand, prepare for some frustration.