Good but not an improvement...
You had some cool moves and powerups in the last one and coming into this game I was expecting to use kitty and puppy. Or at least puppy. But nope, to my dissapointment there was no kitty or puppy to be seen. On another note, bombs are gay. Nice idea, but gay. Robot had a laser in the first game which just mowed everything down in his path like it should be. In this one.... try to aim a bomb and fail.
Overall, decent game, very lengthy, but not an improvement. Good try, congrats on front page.