A remake of Fire Emblem 3. People don't like the story in this one, but like its immediate predecessor, Shadow Dragon, the gameplay is great. It's a pretty cool port too. They reintroduce all the characters the SNES original had to cut for space, they adapted the Satellaview Broadcast Fire Emblem maps, and they added a couple stand-alone story maps to flesh out some of the more plot important characters.
Some complaints though. The new maps for the original characters are a little annoying, and the final chapter has four (sort of) forced deployment slots in addition to Marth, which restricts the potential team you can take to the final chapter. The second issue is present in the SNES original though.

This is probably the hardest Fire emblem experience you can get in vanilla games that isn't bullshit (looking at awakening lunatic+).
Lunatic reverse is such a satisfying challenge to face. The game always puts you in a difficult spot and it just makes you feel good when you're done dealing with its bullshit. Managing to get every side objective and keeping every character alive makes you feel like you completely dominated the game and I love it.
Overall solid but I don't think I'd replay it on lunatic reverse if I had to ever revisit.