Thank you so much for taking the time to write this detailed reply. I find your feedback very valuable too, and agree with the points that you have presented.
There wasn't enough time to introduce the game mechanics in an easy way to the player, nor to test the fun factor in the battle system, which resulted in a repetitive battle format. The player stats are not explained well either, and there wasn't enough time to implement a stats sheet.
As for the number of enemies, I believe it could have been balanced better. I feel there are some interesting ways to control the flow and difficulty of the level without overwhelming the player with too many enemies.
Again, thank you so much for your feedback, it is very valuable and will keep it in mind!