I like the old-school graphics and sound effects. The limited color palette is great. It looks like there is quite a bit of content there.
Unfortunately, the movement is way too slow. I understand that iterative playthroughs make the character faster and more capable, but it's very frustrating to hold down the button and watch him crawl across the screen like that. :) Also, if there is a way to avoid the Reaper, I haven't figured it out. Lastly, one minor point, the collision is a bit too unforgiving.