An interview that the Sega Saturn Shiro! podcast did with Dave Warhol (Executive Producer of Bug!) does shed some light on the early launch. He states that SoA's "...public face was September, but they were always trying to get it done in May." He also states that his developer contract with Sega was 12 months which was always slated for a May or June release, the project was never rushed a few months to meet an unexpected deadline. The game was to be released as soon as it was the developer contract was finished. The official release date I could find on Bug! was 07/28/1995, so perhaps the decision to do an early NA launch for Saturn was being planned a lot earlier then what is usually said? Or maybe he might be misremembering a few details?