I think it's cool you went so far as to include a boss level.
I also think this could be pretty cool, only suggestions are:
1. Don't skim too much off the top from Metal Slug
2. Stop using Stencyl
Other than that, solid design and a great start.
Reviews for "Robot Battle 1"
The concept was good, but the music was annoying, the gameplay was boring, and the overuse of the rocking explosion made it unplayable.
it could be interesting... so far its kindof amusing.. you can only shoot one direction and firing out only tiny pellets makes me cry.. but.. whatever.
I'm sorry to say but this game was pretty bad you always shoot to the right enemies just paste back and forth not even on the whole platform and from what I've seen the game doesn't end it just stops giving you stuff to do...