Game's really ambitious. Making an online multiplayer game for a jam is incredible! And it even has destructible terrain!
Gameplay-wise though it's a bit boring. There should be some indicators when you hit someone (or get hit yourself), cause the only way you know it happened is with the cheese drop. Aslo, the goal isn't immediately clear and people don't tend to find each other often enough for combat. Bombs are really tiny and hard to see and the green cheese is hard to avoid.
Overall, a really good job. I commend your hard work. However, it doesn't quite fulfill its "fast-paced gameplay" promise yet.
But maybe that's a matter of the number of players (I played with 3 other only).