This game doesn't even have a back to it (that's just the circuit
board screwed to the front plastic):
Q&Q Mr Surfing (19xx, LCD, Watch Batteries, Model# CG5-003)
View Manual (in English and German)
Very small game, also unusual that it has the battery compartment on the front of the game, instead of the back like most games (and the battery compartment cover is the on/off switch). This game also has a second built in game called Casino. There are three columns of moving numbers and you stop them one at a time trying to get 3 of a kind (apparently several of the Q&Q games have this).
This game doesn't even have a back to it (that's just the circuit
board screwed to the front plastic):
Do I have this? Yes, boxed (new).