This is a hacked version of the Japanese release of Armadillo for the NES. The hack was created by Vice, and version 1.01 suggests an update or refinement of the original hack.  The original Armadillo game's details are limited, but the hack likely introduces modifications to the original game, though the specifics of these modifications aren't detailed here.  It demonstrates the modding community's ongoing involvement with classic NES games.

Armadillo (Japan) [En by Vice v1.01]

Arkanoid II (Japan)