You can heal/hurt a console twice, hurt one and heal another or hurt/heal 2 different consoles.
3DO: 14
Atari 2600: 14
Atari 5200: 14
Atari 7800: 14
Atari Jaguar: 14
Colecovision: 14
Dreamcast: 14
Gamecube: 14
Genesis: 14
Intellivision: 14
Master System: 14
NeoGeo: 14
Nintendo 64: 14
NES: 14
Odyssey: 14
Odyssey 2: 14
Playstation: 14
Playstation 2: 14
Playstation 3: 14
Saturn: 14
Super NES: 14
TurboGrafx-16: 14
Wii: 14
Xbox: 14
Xbox 360: 14
Maximum is 35. Minimum is 0.
3DO: 14
Atari 2600: 14
Atari 5200: 14
Atari 7800: 14
Atari Jaguar: 14
Colecovision: 14
Dreamcast: 14
Gamecube: 14
Genesis: 14
Intellivision: 14
Master System: 14
NeoGeo: 14
Nintendo 64: 14
NES: 14
Odyssey: 14
Odyssey 2: 14
Playstation: 14
Playstation 2: 14
Playstation 3: 14
Saturn: 14
Super NES: 14
TurboGrafx-16: 14
Wii: 14
Xbox: 14
Xbox 360: 14
Maximum is 35. Minimum is 0.