Heh. I copped Heavy Nova on cart as part of a swap with a kid and his dad through the local classifieds back in the day. I can't exactly remember what they got in exchange but I think it might have been Sword of Sodan… as unliked as HN happens to be, it's still orders of magnitude better than SoS.
My JP 360 has been getting a workout the past couple of weekends, dipping my toes back into Mushi Futari and messing with the arrange modes in a few of the other CAVE releases. As sturdy as the PS4 has been in terms of shmup releases, it's got a fair way to go before it can touch the good 'ol 360. Even taking the CAVE stuff out of the equation leaves a rock-solid library of heavy-hitters to consider.