Tank Enemy

Purpose
Be a high value target and priority for the player, and be a slow moving threat.

Description
The tank enemy slowly walks towards the player, dealing high damage if it is able to hit the player at close range. It also spawns small eye enemies, serving as some form as air carrier for them. This makes him a high value target as he will continue creating more challenges for the player.

Pros

 * 1) Simple behavior to see and understand
 * 2) Will be a high value target which can make the player prioritize
 * 3) Has a simple movement and attack pattern, but has a special ability which can create interesting situations

Cons

 * 1) The spawning itself might not make it interesting enough
 * 2) Its size might cause it to get stuck or behave awkwardly