Super R-Type on Hard difficulty, back in about 1997 or so. I have no idea how that happened.
As far as arcade, Mushihimesama Futari Original. I'm not proud of the fact that I bomb-spammed the final boss to do it, but I wasn't going to screw up the possible clear.
^ I've 1cc'd that as well, its a great game but it is pretty anticlimactic. You more or less have to 1cc it because building up power takes quite a while and unwanted weapon items never seem to go away!
I'm not 100% sure if it was Zero Wing or Thunderforce 3, but one or other on the Mega-Drive.
Ant
Jp-chipped PS1 - PAL PS1 - PAL PS2 - Jp PS2 - Jp Saturn - PAL Xbox 360 - Jp Xbox 360 - Jp MD - PAL DC - Region-free DC - PS4 - PS3 Slim - PS TV - OSSC - Pi-3
Handhelds: 3DS-XL - DS-Lite - DSi XL - PSP 3003 - PS Vita
I want to eject...