Spectator

Spectator is one of the weirdest tanks in the game. If it even is a tank! Press G to toggle visibility, (you can also press Z to zoom in, and if you want to zoom out press X)

Design
The spectator is just a simple circular base, no turrents or anything. The spectator is invisible to itself but visible to other players.

Technical
The spectator is invincible with no health bar, and can go through anything. Even the outside of the map!

Upgrades
The Spectator upgrades from Basic and doesn't upgrade into anything else.