Its Caverns of Zeux only with Cheats, ways to skip several things, enemies dying on one hit from explosions, and you get to start with 30000 lobombs and hibombs. Plus the graphics have changed a little and there's now some annoying sound effects added. Overall it isn't very good, only play it if you cannot beat the original or your feeling rather chaotic.

SOMEONE mustve been bored with caverns.

So apperently, the easiest way to kill Echin is to fill the room up with bombs and blow him up. That makes the game almost as pointless as Super Contra 7. You know, the contra pirate who's gameplay demos feature all the levels and the ending too?