A Digital Press user who goes by the name ""mrmark0673" has discovered an unknown NES game developed by the people at Elite Systems, who seems to have had a lot of NES projects going but only managed to publish very few of them.
This game is a NES version of a C64/Spectrum game called Hoppin' Mad. Unfortunately not much is known about the game right now other than it supposedly contains around 3 levels more or less complete.
More info can be found here
Congrats to the owner of the cartridge... yeah I'm extremely jealous :-)