It's a fun little game if you manage to find people to play with. The graphics and music are really good.
I wish it was less buggy, though. Actually, multiplayer shooters are hard to do properly, especially in 48 hours, and there were some synchronization problems: both players got Victory screen. Looks like health was not displaying properly too.
I got that random rules thing but I wish it had more influence on the gameplay. For now it's run, jump and shoot no matter what rules there are. Although the movement itself felt nice and spot on.
In conclusion, I think, if you do some more polish and figure out multiplayer stuff (I believe big AAA multiplayer shooters perform some tricks to compensate for the delay), it would become a cool fun game. Good job!