well for the void i didn't really finish up the terrain. And yeh i was like 1 hour before the jam ended so i had to export it. I couldn't really fix any bugs, and for the rules sure. WASD for movement and space to shoot. I was originally gonna make the aircrafts selectable for which to move. And for the mechanics you must well shoot the player and kill them in a supposed it amount of time(which didn't even got to finish sadly)
I believe in the future or at least in the next GMTK Game Jam. I can finish a game and publish it as a full release, if you would like to keep in touch with the game feel free to join my discord https://discord.gg/df6WHB6mHu