Ghostlop

Ghostlop (ゴーストロップ) is a unreleased puzzle game for the Neo Geo, originally developed by Data East and slated for release in 1996. Despite being completely and previewed on various gaming magazines of the time the game's release was cancelled for unknown reasons.

Gameplay
In Ghostlop players control Bruce and McCoy, a pair of agents who are tasked with chasing down various ghosts haunting buildings. Gameplay is a mix of Arkanoid and Puzzle Bobble, with the playing field being filled with red and blue colored ghost balls which the player must eliminate by throwing a color changing ricocheting ball which destroys ghosts of the same color.