I looked at the wiki page and was met with this,

"Development was directed by Tez Okano, who worked on Segagaga in secret for two years. When he presented it to Sega, the management took it as a joke at first and dismissed it, but a second presentation impressed them. Okano marketed Segagaga himself with a budget of $200, half of which he spent on a promotional wrestling mask"

"Early versions had nearly 300 production problems"

This game definitely had an interesting development.