Definitely Roles Reversed!
Great work on the presentation. Loved the neo-retro artstyle blending with the retro SFX and Music Fits the gameplay well.
For improvements, I'd suggest allowing you to move your health balloon thing, and then balancing that out by adding some hp to the enemy. Would avoid the problem of the AI just sniping you instantly.
Overall, a very strong submission that just needs some tweaking. Nice!