A thumb-twitch game appears to be similar to a handheld gaming device.
Thumb-twitch games use the skintennas within people's bodies to recognize the movements of the players hands and arms in lieu of a controller. Eyescreens are used instead of a physical video monitor. The games are only heard and seen by the gamer, although there can be tell-tale flickers in the gamer's eyescreen. Technically a part of the person's body, the games can seemingly be booted up anywhere, anytime.
- It can be safely assumed that at least some thumb-twitch games were invented by and are popular with tech-heads.