The aesthetics here are great, some of my favourite in the jam. If you told me these were characters from some forgotten '80s cartoon, I'd have to believe you.
As the other commenters have noted, some additional wrinkles would make the gameplay more interesting. (Small enemies, obstacles, bonus gems, powerups - that sort of thing.) As it stands, it does get fairly simple after you get a hang of the mechanics. Still, I had fun with it, and I'm not even into vore.