Names starting with Mega, Giga, or any other SI Prefix. Often, characters using this prefix won't actually be a power of ten greater than what the prefix is applied to.

Often used to imply "techno"-ness, due to their ubiquitous use in computational measurement (applied to space bytes, processor hertz, processor fabrication meters).

Powers Greater Than Zero:

• Denji Sentai Megaranger
• Megabyte, from Re Boot, of course.
  • And his Super Mode, Gigabyte.
  • And his predecessor, Killabyte.
• Mega Man.
• Giga Bowser, from Super Smash Bros. Melee.
• Transformers villain Megatron.
• Mega Shadow and Giga Shadow, from Lexx.
• The spells Mega Brando and Giga Slave from The Slayers.
• The Villains And Vigilantes adventure Devil's Domain had the NPC hero Meganaut, a Brain In A Jar with a robotic body.
• Sega's Mega Drive (known as the Genesis in America).

Powers Less Than Zero:

• Microsoft.
• Micro Machines.
• Micronauts.
• Milli Vanilli.