Earth's Last Stand

The soil is going extinct and we need you! Go forth and rally everyone to change the world. But becareful as it will not be easy. The characters will shoot balls at you!

Rally characters by touching them using wasd keys 
You have 1 minute to rally everyone before the soil dies. 
Tips: big characters are worth more points 

Red - drains time
Yellow - slows you down
Purple - reverse your movement 

Good luck