War Monster is a cancelled Real Time Strategy game that was in development by Wicked Witch Software for the GameBoy Color. The game allowed to feature over 120 units on screen at once with large maps for mining of resources (including trees) and building of towns, complete with town centers, barracks and towers. War Monster played amazingly well for a RTS on the GBC, but sadly the project had to be cancelled because they never found a publisher. A playable prototye of this game was later found on Ebay by UncleBob.
The War Monster IP was later reused to create another RTS released for Cellphones and also a tech demo for the DS (that probably will never be used for a full game).
Thanks to Rodent for the contribution!