I am reminded of what i believe is the same thing constantly and can never find it. I always thought it was called something like Sodaracer but searches have been unsuccessful. I remember evolution algorithms to make the fastest amoeba wheels.

EDIT: soda constructor by sodaplay.

http://maciejmatyka.blogspot.com/2018/02/soda-constructor-re...

EDIT2: from that link, here is a playable open source recreation linked at the bottom

https://peterfidelman.github.io/constructor/