This toy was exclusively sold in America and was the last group released by Kenner. Note, that Jocsa of Argentina released it's own exclusive group of toys which reused the classic mold like this group and the two group before it.
The group of toys is rather rare due to the limited release. Note the Glow Copter Vehicle promoted on the back of the cards, which was a tie-in vehicle toy, is believed to have not been released.
with Nutrona Blaster and Proton Pack
and Gulper Ghost
Front of Card Notes
Glows In The Dark!
Back of Card Instruction
1. Put the Proton Pack on the figure's back, the Nutrona Blaster on his arm and the mask over his face. Expose figure and ghost to light. Turn off the light so you can see them glow in the dark. Twist the handle on the weapon for a zapping ray action on the captured ghost.
2. Snap the Nutrona Blaster onto the side of the Proton Pack for storage.
Description from Hot! Hot! Hot! Toy Fair 1991 (toy dealer catalog):
"Now kids can enter the ghost world with The Real Ghostbusters Ecto-Glow Heroes! Just turn off the lights and watch them shine! Each figure comes with a hero backpack, mask, Nutrona Blaster and unique companion ghost!"
- Gulper Ghost was first released with Classic Hero Figure: Egon Spengler; for which it was yellow.