Robots, w007!! These are the battle robos used in a mini game in Era-X. Colored on the comp... hey, who says Microsoft Paint can't do anything? Hoo-ah.
Seeing as my handrwiting is nigh illegible, I'll decipher it for ya... the red/black robo is Balance, obviously the most balanced to use in battle. The blue/yellow guy is Hayai, which is my favorite Japanese word and means fast or swift. He's the speedy one. Orange/red/purple dude is Regen, as in the word "regeneration," he's the healer. And the uber purple/green/black dude is the Phazemaster, "phaze" being an energy soucre in the Era-X universe (similar to photon energy of Phantasy Star), and the Phazemaster can use its power to attack... in other words, he's the magic-user.