Team up- prototype

Here's an idea for a 2D puzzle game that I'd like to get feedback on: 

You simultaneously control multiple characters, moving them tile by tile, you attack by colliding with the enemy.

Enemies move only when you do and always try to reach you. The goal is to defeat all  enemies befor character dies

------------------------how to play:--------------------

Controls: W,S,D,A keys

Main character must survive.

Win by eliminating all red characters.

Your health:  number on top .

Your attack: number on bottom 

You attack by colliding with enemy.

If you defeat an enemy you get additional attack

Enemies: Wolfs.

An enemy deals 1 damage per collision.

Stepping on a energy blob grants health or reduce it according to the color

Enemies track main character.

Follower characters  have  same movement as main one .

Use obstacles for advantage