MAN I spent a while digging for this one. I played this when I was little and one of the more distinguishing enemies in it were these green pterodactyls with huge lips that kissed Blaster if he got too close. So occasionally I'd browse Math Blaster videos in attempt to find it, and I finally came across it.
https://www.youtube.com/watch?v=I_PWfXky9po 6:30
..Could've sworn it was different..