Cresta The Pink Panther (19??, LCD, Watch battery, Model# ?)
Based on the cartoon character, but the display looks an awful lot like Cresta's Jungle Kong. Halion has released other games with similar designs (Q*Bert, etc). This has a very Bandai look to the shape of the case, but I'm not sure if they had anything to do with the design of it.
Do I have this? Yes, loose.