Gradius
Game Center Chronicles Part 2
The location test that Ikeda remembers surprising him was The King of Fighters ’95. It brought in 50,000 yen all on its own, and he was floored by the amount of people who showed up to play it.
Rensuke Oshikiri PC Engine mini Interview
“I raced over there as fast as I could,.. the shortest route there would have been almost 20 kilometers long! That’s how much I wanted a PC Engine!” – Rensuke Oshikiri
Gradius
There are plenty of other changes that had to be made to accommodate for memory limitations of a cartridge in 1986 though.