In Miner 2049er you play as the small blue and green character named Bounty Bob; and the key of this game is killing all of the enemies.
Once the enemies are dead, the level isnt over, though. This is because the platforms you walk upon change to green to symbolise that you've been there. To advance further you must highlight all the platforms. This becomes progressively more difficult in the later levels, due to the placement of enemies, slides, walls, etc.
Offer more game-play value, if you fall from one of the platforms you'll lose a life. As obvious as this sounds, it adds a lot more fun and frustration to the game. You could get to the last enemy and fall off on your last life on the last level.