I really liked the core idea of this game — fighting against yourself with swords is a strong and memorable concept. The fact that the enemy repeats your movements and acts as your own copy makes each fight feel personal and a bit unpredictable, which is very well executed.
The visual effects are very nice and add a lot of impact to the combat. The game looks clean and polished, especially during fights. The sound effects are also solid and help make each hit feel satisfying and weighty.
The use of the jam limitation is also at a high level. It feels well integrated into the core mechanic rather than just being something added on top.
Overall, I enjoyed it quite a bit.
One suggestion would be to add a web build to the game’s page and improve how it is presented there. A well-structured and visually appealing page would make it much easier for more people to try the game, which could really help its reach and visibility.