I couldn't find it on ldjam.com anymore so I'll leave my feedback here instead :) It is amazing that you were able to make an mmo in a weekend. Awsome game you made, I played it all the way throught and it was quite fun. The theme is really funny. What I didn't like is that, you are unable to heal yourself, so in order to heal, you have to die, wich is kinda sad. And also, I loved the spitting enemy because you can, with some skill, dodge his attacks, but I did not like the lower spiky ones since you basically have no chance of avoiding his attacks. I would make his attacks have a bit more, anticipation. Something that let the player know that he's going to attack and he should get out of the way.
Cardboard Cats Online
A downloadable game for Windows, macOS, and Linux
New Ver: May have fixed chat.
Come on in and hang out, kill some cat monsters, craft a cape and chat with the other cats in this small scale MMO I made for Ludum dare 38: Theme: A small world.
Note: Apparently (as can be expected with a networked game made in 72 hours) there are substantial bugbears. When you die you die twice, for some reason, despite that not being a problem originally when I tested it. In addition, it seems as though the chat broke from people disconnecting, or something. I can see everything people type, but the clients chat is not updated.
I may fix these things at some point but I am tired; feel free to stop by and level and gear up.