Train

The Train can be found in The Vault. It consists of 2 tunnels, one tunnel is where the train comes out and the other tunnel is where the train exits.

There's a rail track connecting the tunnels, so you see the train coming out of a tunnel, passing over the rail way and exiting in the other tunnel.

The rail length can be either small or large, and the train can move either to the left or to the right.

If the train impacts the player or any other creature, it causes a huge impact which sends them flying and can even be lethal. The damage dealt is explosive, but it cannot be shielded with Explosion Immunity.

The train itself can be destroyed, and in that case it would fall off of the railway and into your world.

This came from a dream with multiple robot type enemies for this game.